Home / 22,930.52-31,644.48-12,861.20

Finding the Fourth Proportional to 22,930.52, 31,644.48 and 12,861.20

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Solution

The fourth proportional to 22,930.52, 31,644.48 and 12,861.20 is: 17,748.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,930.52 : 31,644.48 = 12,861.20 : x
  2. Step 2: Convert to fraction form
    22,930.52/31,644.48 = 12,861.20/x
  3. Step 3: Cross multiply
    22,930.52x = 31,644.48 × 12,861.20
  4. Step 4: Simplify right side
    22,930.52x = 406,985,986.18
  5. Step 5: Solve for x
    x = 406,985,986.18/22,930.52
  6. Step 6: Final answer
    x = 17,748.66

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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.