Home / 31,636.74-47,458.35-11,931.87

Finding the Fourth Proportional to 31,636.74, 47,458.35 and 11,931.87

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Solution

The fourth proportional to 31,636.74, 47,458.35 and 11,931.87 is: 17,899.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,636.74 : 47,458.35 = 11,931.87 : x
  2. Step 2: Convert to fraction form
    31,636.74/47,458.35 = 11,931.87/x
  3. Step 3: Cross multiply
    31,636.74x = 47,458.35 × 11,931.87
  4. Step 4: Simplify right side
    31,636.74x = 566,266,862.61
  5. Step 5: Solve for x
    x = 566,266,862.61/31,636.74
  6. Step 6: Final answer
    x = 17,899.03

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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.