Home / 22,662.28-31,275.33-12,590.80

Finding the Fourth Proportional to 22,662.28, 31,275.33 and 12,590.80

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Solution

The fourth proportional to 22,662.28, 31,275.33 and 12,590.80 is: 17,376.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,662.28 : 31,275.33 = 12,590.80 : x
  2. Step 2: Convert to fraction form
    22,662.28/31,275.33 = 12,590.80/x
  3. Step 3: Cross multiply
    22,662.28x = 31,275.33 × 12,590.80
  4. Step 4: Simplify right side
    22,662.28x = 393,781,424.96
  5. Step 5: Solve for x
    x = 393,781,424.96/22,662.28
  6. Step 6: Final answer
    x = 17,376.07

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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.