Home / 23,196.60-31,990.68-18,718.92

Finding the Fourth Proportional to 23,196.60, 31,990.68 and 18,718.92

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Solution

The fourth proportional to 23,196.60, 31,990.68 and 18,718.92 is: 25,815.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,196.60 : 31,990.68 = 18,718.92 : x
  2. Step 2: Convert to fraction form
    23,196.60/31,990.68 = 18,718.92/x
  3. Step 3: Cross multiply
    23,196.60x = 31,990.68 × 18,718.92
  4. Step 4: Simplify right side
    23,196.60x = 598,830,979.67
  5. Step 5: Solve for x
    x = 598,830,979.67/23,196.60
  6. Step 6: Final answer
    x = 25,815.46

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Double scale
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Similar ratio
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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.