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Finding the Fourth Proportional to 29,567.28, 40,811.88 and 18,240.28

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Solution

The fourth proportional to 29,567.28, 40,811.88 and 18,240.28 is: 25,177.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,567.28 : 40,811.88 = 18,240.28 : x
  2. Step 2: Convert to fraction form
    29,567.28/40,811.88 = 18,240.28/x
  3. Step 3: Cross multiply
    29,567.28x = 40,811.88 × 18,240.28
  4. Step 4: Simplify right side
    29,567.28x = 744,420,118.53
  5. Step 5: Solve for x
    x = 744,420,118.53/29,567.28
  6. Step 6: Final answer
    x = 25,177.16

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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.