Home / 21,432.03-32,153.18-8,945.10

Finding the Fourth Proportional to 21,432.03, 32,153.18 and 8,945.10

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Solution

The fourth proportional to 21,432.03, 32,153.18 and 8,945.10 is: 13,419.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,432.03 : 32,153.18 = 8,945.10 : x
  2. Step 2: Convert to fraction form
    21,432.03/32,153.18 = 8,945.10/x
  3. Step 3: Cross multiply
    21,432.03x = 32,153.18 × 8,945.10
  4. Step 4: Simplify right side
    21,432.03x = 287,613,365.69
  5. Step 5: Solve for x
    x = 287,613,365.69/21,432.03
  6. Step 6: Final answer
    x = 13,419.79

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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.