Home / 31,008.57-42,782.13-17,574.90

Finding the Fourth Proportional to 31,008.57, 42,782.13 and 17,574.90

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Solution

The fourth proportional to 31,008.57, 42,782.13 and 17,574.90 is: 24,247.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,008.57 : 42,782.13 = 17,574.90 : x
  2. Step 2: Convert to fraction form
    31,008.57/42,782.13 = 17,574.90/x
  3. Step 3: Cross multiply
    31,008.57x = 42,782.13 × 17,574.90
  4. Step 4: Simplify right side
    31,008.57x = 751,891,656.54
  5. Step 5: Solve for x
    x = 751,891,656.54/31,008.57
  6. Step 6: Final answer
    x = 24,247.87

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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.