Home / 31,798.38-47,681.37-12,061.92

Finding the Fourth Proportional to 31,798.38, 47,681.37 and 12,061.92

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Solution

The fourth proportional to 31,798.38, 47,681.37 and 12,061.92 is: 18,086.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,798.38 : 47,681.37 = 12,061.92 : x
  2. Step 2: Convert to fraction form
    31,798.38/47,681.37 = 12,061.92/x
  3. Step 3: Cross multiply
    31,798.38x = 47,681.37 × 12,061.92
  4. Step 4: Simplify right side
    31,798.38x = 575,128,870.43
  5. Step 5: Solve for x
    x = 575,128,870.43/31,798.38
  6. Step 6: Final answer
    x = 18,086.73

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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.