Home / 22,861.25-31,547.03-12,787.95

Finding the Fourth Proportional to 22,861.25, 31,547.03 and 12,787.95

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Solution

The fourth proportional to 22,861.25, 31,547.03 and 12,787.95 is: 17,646.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,861.25 : 31,547.03 = 12,787.95 : x
  2. Step 2: Convert to fraction form
    22,861.25/31,547.03 = 12,787.95/x
  3. Step 3: Cross multiply
    22,861.25x = 31,547.03 × 12,787.95
  4. Step 4: Simplify right side
    22,861.25x = 403,421,842.29
  5. Step 5: Solve for x
    x = 403,421,842.29/22,861.25
  6. Step 6: Final answer
    x = 17,646.53

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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.