Home / 39,711.57-59,549.86-18,657.59

Finding the Fourth Proportional to 39,711.57, 59,549.86 and 18,657.59

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Solution

The fourth proportional to 39,711.57, 59,549.86 and 18,657.59 is: 27,978.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,711.57 : 59,549.86 = 18,657.59 : x
  2. Step 2: Convert to fraction form
    39,711.57/59,549.86 = 18,657.59/x
  3. Step 3: Cross multiply
    39,711.57x = 59,549.86 × 18,657.59
  4. Step 4: Simplify right side
    39,711.57x = 1,111,056,872.44
  5. Step 5: Solve for x
    x = 1,111,056,872.44/39,711.57
  6. Step 6: Final answer
    x = 27,978.17

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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.