Home / 29,217.76-40,309.40-17,878.16

Finding the Fourth Proportional to 29,217.76, 40,309.40 and 17,878.16

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Solution

The fourth proportional to 29,217.76, 40,309.40 and 17,878.16 is: 24,665.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,217.76 : 40,309.40 = 17,878.16 : x
  2. Step 2: Convert to fraction form
    29,217.76/40,309.40 = 17,878.16/x
  3. Step 3: Cross multiply
    29,217.76x = 40,309.40 × 17,878.16
  4. Step 4: Simplify right side
    29,217.76x = 720,657,902.70
  5. Step 5: Solve for x
    x = 720,657,902.70/29,217.76
  6. Step 6: Final answer
    x = 24,665.06

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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.