Home / 53,213.38-79,821.28-15,772.74

Finding the Fourth Proportional to 53,213.38, 79,821.28 and 15,772.74

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Solution

The fourth proportional to 53,213.38, 79,821.28 and 15,772.74 is: 23,659.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,213.38 : 79,821.28 = 15,772.74 : x
  2. Step 2: Convert to fraction form
    53,213.38/79,821.28 = 15,772.74/x
  3. Step 3: Cross multiply
    53,213.38x = 79,821.28 × 15,772.74
  4. Step 4: Simplify right side
    53,213.38x = 1,259,000,295.91
  5. Step 5: Solve for x
    x = 1,259,000,295.91/53,213.38
  6. Step 6: Final answer
    x = 23,659.47

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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.