Home / 40,869.30-61,307.50-11,287.16

Finding the Fourth Proportional to 40,869.30, 61,307.50 and 11,287.16

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Solution

The fourth proportional to 40,869.30, 61,307.50 and 11,287.16 is: 16,931.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,869.30 : 61,307.50 = 11,287.16 : x
  2. Step 2: Convert to fraction form
    40,869.30/61,307.50 = 11,287.16/x
  3. Step 3: Cross multiply
    40,869.30x = 61,307.50 × 11,287.16
  4. Step 4: Simplify right side
    40,869.30x = 691,987,561.70
  5. Step 5: Solve for x
    x = 691,987,561.70/40,869.30
  6. Step 6: Final answer
    x = 16,931.72

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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.