Home / 29,115.95-40,166.15-17,171.28

Finding the Fourth Proportional to 29,115.95, 40,166.15 and 17,171.28

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Solution

The fourth proportional to 29,115.95, 40,166.15 and 17,171.28 is: 23,688.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,115.95 : 40,166.15 = 17,171.28 : x
  2. Step 2: Convert to fraction form
    29,115.95/40,166.15 = 17,171.28/x
  3. Step 3: Cross multiply
    29,115.95x = 40,166.15 × 17,171.28
  4. Step 4: Simplify right side
    29,115.95x = 689,704,122.32
  5. Step 5: Solve for x
    x = 689,704,122.32/29,115.95
  6. Step 6: Final answer
    x = 23,688.19

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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.