Home / 28,516.48-42,786.66-12,710.62

Finding the Fourth Proportional to 28,516.48, 42,786.66 and 12,710.62

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Solution

The fourth proportional to 28,516.48, 42,786.66 and 12,710.62 is: 19,071.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,516.48 : 42,786.66 = 12,710.62 : x
  2. Step 2: Convert to fraction form
    28,516.48/42,786.66 = 12,710.62/x
  3. Step 3: Cross multiply
    28,516.48x = 42,786.66 × 12,710.62
  4. Step 4: Simplify right side
    28,516.48x = 543,844,976.33
  5. Step 5: Solve for x
    x = 543,844,976.33/28,516.48
  6. Step 6: Final answer
    x = 19,071.25

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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.