Home / 21,376.38-32,071.06-10,279.92

Finding the Fourth Proportional to 21,376.38, 32,071.06 and 10,279.92

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Solution

The fourth proportional to 21,376.38, 32,071.06 and 10,279.92 is: 15,423.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.38 : 32,071.06 = 10,279.92 : x
  2. Step 2: Convert to fraction form
    21,376.38/32,071.06 = 10,279.92/x
  3. Step 3: Cross multiply
    21,376.38x = 32,071.06 × 10,279.92
  4. Step 4: Simplify right side
    21,376.38x = 329,687,931.12
  5. Step 5: Solve for x
    x = 329,687,931.12/21,376.38
  6. Step 6: Final answer
    x = 15,423.00

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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.