Home / 31,158.36-42,998.22-19,216.92

Finding the Fourth Proportional to 31,158.36, 42,998.22 and 19,216.92

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Solution

The fourth proportional to 31,158.36, 42,998.22 and 19,216.92 is: 26,519.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,158.36 : 42,998.22 = 19,216.92 : x
  2. Step 2: Convert to fraction form
    31,158.36/42,998.22 = 19,216.92/x
  3. Step 3: Cross multiply
    31,158.36x = 42,998.22 × 19,216.92
  4. Step 4: Simplify right side
    31,158.36x = 826,293,353.88
  5. Step 5: Solve for x
    x = 826,293,353.88/31,158.36
  6. Step 6: Final answer
    x = 26,519.15

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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.