Home / 40,971.90-61,437.24-19,898.70

Finding the Fourth Proportional to 40,971.90, 61,437.24 and 19,898.70

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Solution

The fourth proportional to 40,971.90, 61,437.24 and 19,898.70 is: 29,838.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,971.90 : 61,437.24 = 19,898.70 : x
  2. Step 2: Convert to fraction form
    40,971.90/61,437.24 = 19,898.70/x
  3. Step 3: Cross multiply
    40,971.90x = 61,437.24 × 19,898.70
  4. Step 4: Simplify right side
    40,971.90x = 1,222,521,207.59
  5. Step 5: Solve for x
    x = 1,222,521,207.59/40,971.90
  6. Step 6: Final answer
    x = 29,838.04

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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.