Home / 28,030.50-42,045.75-11,399.58

Finding the Fourth Proportional to 28,030.50, 42,045.75 and 11,399.58

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Solution

The fourth proportional to 28,030.50, 42,045.75 and 11,399.58 is: 17,099.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.50 : 42,045.75 = 11,399.58 : x
  2. Step 2: Convert to fraction form
    28,030.50/42,045.75 = 11,399.58/x
  3. Step 3: Cross multiply
    28,030.50x = 42,045.75 × 11,399.58
  4. Step 4: Simplify right side
    28,030.50x = 479,303,890.79
  5. Step 5: Solve for x
    x = 479,303,890.79/28,030.50
  6. Step 6: Final answer
    x = 17,099.37

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.