Home / 31,331.46-47,012.22-14,688.78

Finding the Fourth Proportional to 31,331.46, 47,012.22 and 14,688.78

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Solution

The fourth proportional to 31,331.46, 47,012.22 and 14,688.78 is: 22,040.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,331.46 : 47,012.22 = 14,688.78 : x
  2. Step 2: Convert to fraction form
    31,331.46/47,012.22 = 14,688.78/x
  3. Step 3: Cross multiply
    31,331.46x = 47,012.22 × 14,688.78
  4. Step 4: Simplify right side
    31,331.46x = 690,552,156.89
  5. Step 5: Solve for x
    x = 690,552,156.89/31,331.46
  6. Step 6: Final answer
    x = 22,040.22

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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.