Home / 31,560.41-47,314.11-13,777.55

Finding the Fourth Proportional to 31,560.41, 47,314.11 and 13,777.55

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Solution

The fourth proportional to 31,560.41, 47,314.11 and 13,777.55 is: 20,654.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,560.41 : 47,314.11 = 13,777.55 : x
  2. Step 2: Convert to fraction form
    31,560.41/47,314.11 = 13,777.55/x
  3. Step 3: Cross multiply
    31,560.41x = 47,314.11 × 13,777.55
  4. Step 4: Simplify right side
    31,560.41x = 651,872,508.75
  5. Step 5: Solve for x
    x = 651,872,508.75/31,560.41
  6. Step 6: Final answer
    x = 20,654.75

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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.