Home / 40,930.30-61,395.45-21,247.30

Finding the Fourth Proportional to 40,930.30, 61,395.45 and 21,247.30

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Solution

The fourth proportional to 40,930.30, 61,395.45 and 21,247.30 is: 31,870.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,930.30 : 61,395.45 = 21,247.30 : x
  2. Step 2: Convert to fraction form
    40,930.30/61,395.45 = 21,247.30/x
  3. Step 3: Cross multiply
    40,930.30x = 61,395.45 × 21,247.30
  4. Step 4: Simplify right side
    40,930.30x = 1,304,487,544.79
  5. Step 5: Solve for x
    x = 1,304,487,544.79/40,930.30
  6. Step 6: Final answer
    x = 31,870.95

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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.