Home / 42,724.48-58,889.28-28,572.16

Finding the Fourth Proportional to 42,724.48, 58,889.28 and 28,572.16

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Solution

The fourth proportional to 42,724.48, 58,889.28 and 28,572.16 is: 39,382.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,724.48 : 58,889.28 = 28,572.16 : x
  2. Step 2: Convert to fraction form
    42,724.48/58,889.28 = 28,572.16/x
  3. Step 3: Cross multiply
    42,724.48x = 58,889.28 × 28,572.16
  4. Step 4: Simplify right side
    42,724.48x = 1,682,593,930.44
  5. Step 5: Solve for x
    x = 1,682,593,930.44/42,724.48
  6. Step 6: Final answer
    x = 39,382.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.