Home / 41,126.40-61,680.36-18,918.42

Finding the Fourth Proportional to 41,126.40, 61,680.36 and 18,918.42

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Solution

The fourth proportional to 41,126.40, 61,680.36 and 18,918.42 is: 28,373.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,126.40 : 61,680.36 = 18,918.42 : x
  2. Step 2: Convert to fraction form
    41,126.40/61,680.36 = 18,918.42/x
  3. Step 3: Cross multiply
    41,126.40x = 61,680.36 × 18,918.42
  4. Step 4: Simplify right side
    41,126.40x = 1,166,894,956.23
  5. Step 5: Solve for x
    x = 1,166,894,956.23/41,126.40
  6. Step 6: Final answer
    x = 28,373.38

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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.