Home / 22,402.90-30,914.31-12,842.70

Finding the Fourth Proportional to 22,402.90, 30,914.31 and 12,842.70

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Solution

The fourth proportional to 22,402.90, 30,914.31 and 12,842.70 is: 17,721.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,402.90 : 30,914.31 = 12,842.70 : x
  2. Step 2: Convert to fraction form
    22,402.90/30,914.31 = 12,842.70/x
  3. Step 3: Cross multiply
    22,402.90x = 30,914.31 × 12,842.70
  4. Step 4: Simplify right side
    22,402.90x = 397,023,209.04
  5. Step 5: Solve for x
    x = 397,023,209.04/22,402.90
  6. Step 6: Final answer
    x = 17,721.96

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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.