Home / 22,782.44-31,439.78-12,710.88

Finding the Fourth Proportional to 22,782.44, 31,439.78 and 12,710.88

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Solution

The fourth proportional to 22,782.44, 31,439.78 and 12,710.88 is: 17,541.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,782.44 : 31,439.78 = 12,710.88 : x
  2. Step 2: Convert to fraction form
    22,782.44/31,439.78 = 12,710.88/x
  3. Step 3: Cross multiply
    22,782.44x = 31,439.78 × 12,710.88
  4. Step 4: Simplify right side
    22,782.44x = 399,627,207.25
  5. Step 5: Solve for x
    x = 399,627,207.25/22,782.44
  6. Step 6: Final answer
    x = 17,541.02

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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.