Home / 29,340.61-40,488.91-15,911.62

Finding the Fourth Proportional to 29,340.61, 40,488.91 and 15,911.62

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Solution

The fourth proportional to 29,340.61, 40,488.91 and 15,911.62 is: 21,957.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,340.61 : 40,488.91 = 15,911.62 : x
  2. Step 2: Convert to fraction form
    29,340.61/40,488.91 = 15,911.62/x
  3. Step 3: Cross multiply
    29,340.61x = 40,488.91 × 15,911.62
  4. Step 4: Simplify right side
    29,340.61x = 644,244,150.13
  5. Step 5: Solve for x
    x = 644,244,150.13/29,340.61
  6. Step 6: Final answer
    x = 21,957.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.