Home / 28,393.91-42,560.28-13,571.31

Finding the Fourth Proportional to 28,393.91, 42,560.28 and 13,571.31

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Solution

The fourth proportional to 28,393.91, 42,560.28 and 13,571.31 is: 20,342.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,393.91 : 42,560.28 = 13,571.31 : x
  2. Step 2: Convert to fraction form
    28,393.91/42,560.28 = 13,571.31/x
  3. Step 3: Cross multiply
    28,393.91x = 42,560.28 × 13,571.31
  4. Step 4: Simplify right side
    28,393.91x = 577,598,753.57
  5. Step 5: Solve for x
    x = 577,598,753.57/28,393.91
  6. Step 6: Final answer
    x = 20,342.35

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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.