Home / 22,782.28-31,439.56-12,710.44

Finding the Fourth Proportional to 22,782.28, 31,439.56 and 12,710.44

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Solution

The fourth proportional to 22,782.28, 31,439.56 and 12,710.44 is: 17,540.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,782.28 : 31,439.56 = 12,710.44 : x
  2. Step 2: Convert to fraction form
    22,782.28/31,439.56 = 12,710.44/x
  3. Step 3: Cross multiply
    22,782.28x = 31,439.56 × 12,710.44
  4. Step 4: Simplify right side
    22,782.28x = 399,610,641.01
  5. Step 5: Solve for x
    x = 399,610,641.01/22,782.28
  6. Step 6: Final answer
    x = 17,540.41

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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.