Home / 29,079.91-40,130.64-17,142.54

Finding the Fourth Proportional to 29,079.91, 40,130.64 and 17,142.54

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Solution

The fourth proportional to 29,079.91, 40,130.64 and 17,142.54 is: 23,656.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,079.91 : 40,130.64 = 17,142.54 : x
  2. Step 2: Convert to fraction form
    29,079.91/40,130.64 = 17,142.54/x
  3. Step 3: Cross multiply
    29,079.91x = 40,130.64 × 17,142.54
  4. Step 4: Simplify right side
    29,079.91x = 687,941,065.38
  5. Step 5: Solve for x
    x = 687,941,065.38/29,079.91
  6. Step 6: Final answer
    x = 23,656.92

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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.