Home / 15,623.28-23,432.40-5,767.20

Finding the Fourth Proportional to 15,623.28, 23,432.40 and 5,767.20

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Solution

The fourth proportional to 15,623.28, 23,432.40 and 5,767.20 is: 8,649.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,623.28 : 23,432.40 = 5,767.20 : x
  2. Step 2: Convert to fraction form
    15,623.28/23,432.40 = 5,767.20/x
  3. Step 3: Cross multiply
    15,623.28x = 23,432.40 × 5,767.20
  4. Step 4: Simplify right side
    15,623.28x = 135,139,337.28
  5. Step 5: Solve for x
    x = 135,139,337.28/15,623.28
  6. Step 6: Final answer
    x = 8,649.87

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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.