Home / 31,540.02-43,523.23-18,101.81

Finding the Fourth Proportional to 31,540.02, 43,523.23 and 18,101.81

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Solution

The fourth proportional to 31,540.02, 43,523.23 and 18,101.81 is: 24,979.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,540.02 : 43,523.23 = 18,101.81 : x
  2. Step 2: Convert to fraction form
    31,540.02/43,523.23 = 18,101.81/x
  3. Step 3: Cross multiply
    31,540.02x = 43,523.23 × 18,101.81
  4. Step 4: Simplify right side
    31,540.02x = 787,849,285.30
  5. Step 5: Solve for x
    x = 787,849,285.30/31,540.02
  6. Step 6: Final answer
    x = 24,979.36

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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.