Home / 21,424.60-32,079.30-15,549.40

Finding the Fourth Proportional to 21,424.60, 32,079.30 and 15,549.40

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Solution

The fourth proportional to 21,424.60, 32,079.30 and 15,549.40 is: 23,282.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,424.60 : 32,079.30 = 15,549.40 : x
  2. Step 2: Convert to fraction form
    21,424.60/32,079.30 = 15,549.40/x
  3. Step 3: Cross multiply
    21,424.60x = 32,079.30 × 15,549.40
  4. Step 4: Simplify right side
    21,424.60x = 498,813,867.42
  5. Step 5: Solve for x
    x = 498,813,867.42/21,424.60
  6. Step 6: Final answer
    x = 23,282.30

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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.