Home / 22,784.28-31,442.34-12,712.46

Finding the Fourth Proportional to 22,784.28, 31,442.34 and 12,712.46

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Solution

The fourth proportional to 22,784.28, 31,442.34 and 12,712.46 is: 17,543.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,784.28 : 31,442.34 = 12,712.46 : x
  2. Step 2: Convert to fraction form
    22,784.28/31,442.34 = 12,712.46/x
  3. Step 3: Cross multiply
    22,784.28x = 31,442.34 × 12,712.46
  4. Step 4: Simplify right side
    22,784.28x = 399,709,489.56
  5. Step 5: Solve for x
    x = 399,709,489.56/22,784.28
  6. Step 6: Final answer
    x = 17,543.21

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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.