Home / 31,023.46-42,812.09-16,876.30

Finding the Fourth Proportional to 31,023.46, 42,812.09 and 16,876.30

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Solution

The fourth proportional to 31,023.46, 42,812.09 and 16,876.30 is: 23,289.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,023.46 : 42,812.09 = 16,876.30 : x
  2. Step 2: Convert to fraction form
    31,023.46/42,812.09 = 16,876.30/x
  3. Step 3: Cross multiply
    31,023.46x = 42,812.09 × 16,876.30
  4. Step 4: Simplify right side
    31,023.46x = 722,509,721.54
  5. Step 5: Solve for x
    x = 722,509,721.54/31,023.46
  6. Step 6: Final answer
    x = 23,289.14

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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.