Home / 31,777.79-47,655.74-12,061.98

Finding the Fourth Proportional to 31,777.79, 47,655.74 and 12,061.98

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Solution

The fourth proportional to 31,777.79, 47,655.74 and 12,061.98 is: 18,088.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,777.79 : 47,655.74 = 12,061.98 : x
  2. Step 2: Convert to fraction form
    31,777.79/47,655.74 = 12,061.98/x
  3. Step 3: Cross multiply
    31,777.79x = 47,655.74 × 12,061.98
  4. Step 4: Simplify right side
    31,777.79x = 574,822,612.92
  5. Step 5: Solve for x
    x = 574,822,612.92/31,777.79
  6. Step 6: Final answer
    x = 18,088.82

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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.