Home / 22,681.55-31,285.00-13,713.50

Finding the Fourth Proportional to 22,681.55, 31,285.00 and 13,713.50

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Solution

The fourth proportional to 22,681.55, 31,285.00 and 13,713.50 is: 18,915.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,681.55 : 31,285.00 = 13,713.50 : x
  2. Step 2: Convert to fraction form
    22,681.55/31,285.00 = 13,713.50/x
  3. Step 3: Cross multiply
    22,681.55x = 31,285.00 × 13,713.50
  4. Step 4: Simplify right side
    22,681.55x = 429,026,942.85
  5. Step 5: Solve for x
    x = 429,026,942.85/22,681.55
  6. Step 6: Final answer
    x = 18,915.24

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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.