Home / 35,139.78-52,672.95-15,401.70

Finding the Fourth Proportional to 35,139.78, 52,672.95 and 15,401.70

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Solution

The fourth proportional to 35,139.78, 52,672.95 and 15,401.70 is: 23,086.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,139.78 : 52,672.95 = 15,401.70 : x
  2. Step 2: Convert to fraction form
    35,139.78/52,672.95 = 15,401.70/x
  3. Step 3: Cross multiply
    35,139.78x = 52,672.95 × 15,401.70
  4. Step 4: Simplify right side
    35,139.78x = 811,252,974.02
  5. Step 5: Solve for x
    x = 811,252,974.02/35,139.78
  6. Step 6: Final answer
    x = 23,086.46

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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.