Home / 21,453.56-29,590.11-12,500.53

Finding the Fourth Proportional to 21,453.56, 29,590.11 and 12,500.53

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Solution

The fourth proportional to 21,453.56, 29,590.11 and 12,500.53 is: 17,241.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453.56 : 29,590.11 = 12,500.53 : x
  2. Step 2: Convert to fraction form
    21,453.56/29,590.11 = 12,500.53/x
  3. Step 3: Cross multiply
    21,453.56x = 29,590.11 × 12,500.53
  4. Step 4: Simplify right side
    21,453.56x = 369,891,983.78
  5. Step 5: Solve for x
    x = 369,891,983.78/21,453.56
  6. Step 6: Final answer
    x = 17,241.52

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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.