Home / 29,079.79-40,130.47-17,142.41

Finding the Fourth Proportional to 29,079.79, 40,130.47 and 17,142.41

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Solution

The fourth proportional to 29,079.79, 40,130.47 and 17,142.41 is: 23,656.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,079.79 : 40,130.47 = 17,142.41 : x
  2. Step 2: Convert to fraction form
    29,079.79/40,130.47 = 17,142.41/x
  3. Step 3: Cross multiply
    29,079.79x = 40,130.47 × 17,142.41
  4. Step 4: Simplify right side
    29,079.79x = 687,933,091.99
  5. Step 5: Solve for x
    x = 687,933,091.99/29,079.79
  6. Step 6: Final answer
    x = 23,656.74

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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.