Home / 31,418.66-43,358.02-17,271.20

Finding the Fourth Proportional to 31,418.66, 43,358.02 and 17,271.20

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Solution

The fourth proportional to 31,418.66, 43,358.02 and 17,271.20 is: 23,834.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.66 : 43,358.02 = 17,271.20 : x
  2. Step 2: Convert to fraction form
    31,418.66/43,358.02 = 17,271.20/x
  3. Step 3: Cross multiply
    31,418.66x = 43,358.02 × 17,271.20
  4. Step 4: Simplify right side
    31,418.66x = 748,845,035.02
  5. Step 5: Solve for x
    x = 748,845,035.02/31,418.66
  6. Step 6: Final answer
    x = 23,834.40

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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.