Home / 19,215.60-28,823.40-13,310.70

Finding the Fourth Proportional to 19,215.60, 28,823.40 and 13,310.70

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Solution

The fourth proportional to 19,215.60, 28,823.40 and 13,310.70 is: 19,966.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.60 : 28,823.40 = 13,310.70 : x
  2. Step 2: Convert to fraction form
    19,215.60/28,823.40 = 13,310.70/x
  3. Step 3: Cross multiply
    19,215.60x = 28,823.40 × 13,310.70
  4. Step 4: Simplify right side
    19,215.60x = 383,659,630.38
  5. Step 5: Solve for x
    x = 383,659,630.38/19,215.60
  6. Step 6: Final answer
    x = 19,966.05

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Similar ratio
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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.