Home / 28,029.70-42,008.10-11,376.10

Finding the Fourth Proportional to 28,029.70, 42,008.10 and 11,376.10

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Solution

The fourth proportional to 28,029.70, 42,008.10 and 11,376.10 is: 17,049.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029.70 : 42,008.10 = 11,376.10 : x
  2. Step 2: Convert to fraction form
    28,029.70/42,008.10 = 11,376.10/x
  3. Step 3: Cross multiply
    28,029.70x = 42,008.10 × 11,376.10
  4. Step 4: Simplify right side
    28,029.70x = 477,888,346.41
  5. Step 5: Solve for x
    x = 477,888,346.41/28,029.70
  6. Step 6: Final answer
    x = 17,049.36

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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.