Home / 29,274.74-40,400.42-18,515.76

Finding the Fourth Proportional to 29,274.74, 40,400.42 and 18,515.76

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Solution

The fourth proportional to 29,274.74, 40,400.42 and 18,515.76 is: 25,552.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,274.74 : 40,400.42 = 18,515.76 : x
  2. Step 2: Convert to fraction form
    29,274.74/40,400.42 = 18,515.76/x
  3. Step 3: Cross multiply
    29,274.74x = 40,400.42 × 18,515.76
  4. Step 4: Simplify right side
    29,274.74x = 748,044,681.57
  5. Step 5: Solve for x
    x = 748,044,681.57/29,274.74
  6. Step 6: Final answer
    x = 25,552.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.