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Finding the Fourth Proportional to 29,283.65, 40,410.95 and 15,854.80

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Solution

The fourth proportional to 29,283.65, 40,410.95 and 15,854.80 is: 21,879.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,283.65 : 40,410.95 = 15,854.80 : x
  2. Step 2: Convert to fraction form
    29,283.65/40,410.95 = 15,854.80/x
  3. Step 3: Cross multiply
    29,283.65x = 40,410.95 × 15,854.80
  4. Step 4: Simplify right side
    29,283.65x = 640,707,248.73
  5. Step 5: Solve for x
    x = 640,707,248.73/29,283.65
  6. Step 6: Final answer
    x = 21,879.35

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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.