Home / 22,592.06-31,176.98-12,520.40

Finding the Fourth Proportional to 22,592.06, 31,176.98 and 12,520.40

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Solution

The fourth proportional to 22,592.06, 31,176.98 and 12,520.40 is: 17,278.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,592.06 : 31,176.98 = 12,520.40 : x
  2. Step 2: Convert to fraction form
    22,592.06/31,176.98 = 12,520.40/x
  3. Step 3: Cross multiply
    22,592.06x = 31,176.98 × 12,520.40
  4. Step 4: Simplify right side
    22,592.06x = 390,348,141.33
  5. Step 5: Solve for x
    x = 390,348,141.33/22,592.06
  6. Step 6: Final answer
    x = 17,278.11

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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.