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Finding the Fourth Proportional to 21,498.72, 32,248.08 and 9,015.42

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Solution

The fourth proportional to 21,498.72, 32,248.08 and 9,015.42 is: 13,523.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,498.72 : 32,248.08 = 9,015.42 : x
  2. Step 2: Convert to fraction form
    21,498.72/32,248.08 = 9,015.42/x
  3. Step 3: Cross multiply
    21,498.72x = 32,248.08 × 9,015.42
  4. Step 4: Simplify right side
    21,498.72x = 290,729,985.39
  5. Step 5: Solve for x
    x = 290,729,985.39/21,498.72
  6. Step 6: Final answer
    x = 13,523.13

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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.