Home / 40,885.76-61,445.28-20,123.84

Finding the Fourth Proportional to 40,885.76, 61,445.28 and 20,123.84

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Solution

The fourth proportional to 40,885.76, 61,445.28 and 20,123.84 is: 30,243.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,885.76 : 61,445.28 = 20,123.84 : x
  2. Step 2: Convert to fraction form
    40,885.76/61,445.28 = 20,123.84/x
  3. Step 3: Cross multiply
    40,885.76x = 61,445.28 × 20,123.84
  4. Step 4: Simplify right side
    40,885.76x = 1,236,514,983.48
  5. Step 5: Solve for x
    x = 1,236,514,983.48/40,885.76
  6. Step 6: Final answer
    x = 30,243.17

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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.