Home / 22,681.86-31,303.11-13,731.60

Finding the Fourth Proportional to 22,681.86, 31,303.11 and 13,731.60

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Solution

The fourth proportional to 22,681.86, 31,303.11 and 13,731.60 is: 18,950.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,681.86 : 31,303.11 = 13,731.60 : x
  2. Step 2: Convert to fraction form
    22,681.86/31,303.11 = 13,731.60/x
  3. Step 3: Cross multiply
    22,681.86x = 31,303.11 × 13,731.60
  4. Step 4: Simplify right side
    22,681.86x = 429,841,785.28
  5. Step 5: Solve for x
    x = 429,841,785.28/22,681.86
  6. Step 6: Final answer
    x = 18,950.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.