Home / 21,799.08-32,712.42-9,319.20

Finding the Fourth Proportional to 21,799.08, 32,712.42 and 9,319.20

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Solution

The fourth proportional to 21,799.08, 32,712.42 and 9,319.20 is: 13,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,799.08 : 32,712.42 = 9,319.20 : x
  2. Step 2: Convert to fraction form
    21,799.08/32,712.42 = 9,319.20/x
  3. Step 3: Cross multiply
    21,799.08x = 32,712.42 × 9,319.20
  4. Step 4: Simplify right side
    21,799.08x = 304,853,584.46
  5. Step 5: Solve for x
    x = 304,853,584.46/21,799.08
  6. Step 6: Final answer
    x = 13,984.70

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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.