Home / 31,027.19-42,817.28-16,880.00

Finding the Fourth Proportional to 31,027.19, 42,817.28 and 16,880.00

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Solution

The fourth proportional to 31,027.19, 42,817.28 and 16,880.00 is: 23,294.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,027.19 : 42,817.28 = 16,880.00 : x
  2. Step 2: Convert to fraction form
    31,027.19/42,817.28 = 16,880.00/x
  3. Step 3: Cross multiply
    31,027.19x = 42,817.28 × 16,880.00
  4. Step 4: Simplify right side
    31,027.19x = 722,755,387.91
  5. Step 5: Solve for x
    x = 722,755,387.91/31,027.19
  6. Step 6: Final answer
    x = 23,294.26

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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.