Home / 31,681.11-47,527.59-11,695.80

Finding the Fourth Proportional to 31,681.11, 47,527.59 and 11,695.80

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Solution

The fourth proportional to 31,681.11, 47,527.59 and 11,695.80 is: 17,545.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,681.11 : 47,527.59 = 11,695.80 : x
  2. Step 2: Convert to fraction form
    31,681.11/47,527.59 = 11,695.80/x
  3. Step 3: Cross multiply
    31,681.11x = 47,527.59 × 11,695.80
  4. Step 4: Simplify right side
    31,681.11x = 555,873,187.12
  5. Step 5: Solve for x
    x = 555,873,187.12/31,681.11
  6. Step 6: Final answer
    x = 17,545.89

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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.