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Finding the Fourth Proportional to 22,818, 31,489.53 and 12,746.88

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Solution

The fourth proportional to 22,818, 31,489.53 and 12,746.88 is: 17,591.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,818 : 31,489.53 = 12,746.88 : x
  2. Step 2: Convert to fraction form
    22,818/31,489.53 = 12,746.88/x
  3. Step 3: Cross multiply
    22,818x = 31,489.53 × 12,746.88
  4. Step 4: Simplify right side
    22,818x = 401,393,260.17
  5. Step 5: Solve for x
    x = 401,393,260.17/22,818
  6. Step 6: Final answer
    x = 17,591.08

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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.