Home / 21,599.60-29,817-15,924.56

Finding the Fourth Proportional to 21,599.60, 29,817 and 15,924.56

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Solution

The fourth proportional to 21,599.60, 29,817 and 15,924.56 is: 21,982.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,599.60 : 29,817 = 15,924.56 : x
  2. Step 2: Convert to fraction form
    21,599.60/29,817 = 15,924.56/x
  3. Step 3: Cross multiply
    21,599.60x = 29,817 × 15,924.56
  4. Step 4: Simplify right side
    21,599.60x = 474,822,605.52
  5. Step 5: Solve for x
    x = 474,822,605.52/21,599.60
  6. Step 6: Final answer
    x = 21,982.94

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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.