Home / 31,397.86-43,314.24-20,061.46

Finding the Fourth Proportional to 31,397.86, 43,314.24 and 20,061.46

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Solution

The fourth proportional to 31,397.86, 43,314.24 and 20,061.46 is: 27,675.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,397.86 : 43,314.24 = 20,061.46 : x
  2. Step 2: Convert to fraction form
    31,397.86/43,314.24 = 20,061.46/x
  3. Step 3: Cross multiply
    31,397.86x = 43,314.24 × 20,061.46
  4. Step 4: Simplify right side
    31,397.86x = 868,946,893.19
  5. Step 5: Solve for x
    x = 868,946,893.19/31,397.86
  6. Step 6: Final answer
    x = 27,675.35

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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.