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Finding the Fourth Proportional to 21,595.83, 32,398.08 and 9,115.83

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Solution

The fourth proportional to 21,595.83, 32,398.08 and 9,115.83 is: 13,675.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,595.83 : 32,398.08 = 9,115.83 : x
  2. Step 2: Convert to fraction form
    21,595.83/32,398.08 = 9,115.83/x
  3. Step 3: Cross multiply
    21,595.83x = 32,398.08 × 9,115.83
  4. Step 4: Simplify right side
    21,595.83x = 295,335,389.61
  5. Step 5: Solve for x
    x = 295,335,389.61/21,595.83
  6. Step 6: Final answer
    x = 13,675.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.