Home / 31,127.28-46,690.87-11,407.38

Finding the Fourth Proportional to 31,127.28, 46,690.87 and 11,407.38

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Solution

The fourth proportional to 31,127.28, 46,690.87 and 11,407.38 is: 17,111.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,127.28 : 46,690.87 = 11,407.38 : x
  2. Step 2: Convert to fraction form
    31,127.28/46,690.87 = 11,407.38/x
  3. Step 3: Cross multiply
    31,127.28x = 46,690.87 × 11,407.38
  4. Step 4: Simplify right side
    31,127.28x = 532,620,496.62
  5. Step 5: Solve for x
    x = 532,620,496.62/31,127.28
  6. Step 6: Final answer
    x = 17,111.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.