Home / 22,715.82-31,346.46-12,643.74

Finding the Fourth Proportional to 22,715.82, 31,346.46 and 12,643.74

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Solution

The fourth proportional to 22,715.82, 31,346.46 and 12,643.74 is: 17,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,715.82 : 31,346.46 = 12,643.74 : x
  2. Step 2: Convert to fraction form
    22,715.82/31,346.46 = 12,643.74/x
  3. Step 3: Cross multiply
    22,715.82x = 31,346.46 × 12,643.74
  4. Step 4: Simplify right side
    22,715.82x = 396,336,490.16
  5. Step 5: Solve for x
    x = 396,336,490.16/22,715.82
  6. Step 6: Final answer
    x = 17,447.60

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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.