Home / 21,305.60-31,934.40-10,217.60

Finding the Fourth Proportional to 21,305.60, 31,934.40 and 10,217.60

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Solution

The fourth proportional to 21,305.60, 31,934.40 and 10,217.60 is: 15,314.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,305.60 : 31,934.40 = 10,217.60 : x
  2. Step 2: Convert to fraction form
    21,305.60/31,934.40 = 10,217.60/x
  3. Step 3: Cross multiply
    21,305.60x = 31,934.40 × 10,217.60
  4. Step 4: Simplify right side
    21,305.60x = 326,292,925.44
  5. Step 5: Solve for x
    x = 326,292,925.44/21,305.60
  6. Step 6: Final answer
    x = 15,314.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.