Home / 18,948.60-28,422.90-13,043.70

Finding the Fourth Proportional to 18,948.60, 28,422.90 and 13,043.70

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Solution

The fourth proportional to 18,948.60, 28,422.90 and 13,043.70 is: 19,565.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,948.60 : 28,422.90 = 13,043.70 : x
  2. Step 2: Convert to fraction form
    18,948.60/28,422.90 = 13,043.70/x
  3. Step 3: Cross multiply
    18,948.60x = 28,422.90 × 13,043.70
  4. Step 4: Simplify right side
    18,948.60x = 370,739,780.73
  5. Step 5: Solve for x
    x = 370,739,780.73/18,948.60
  6. Step 6: Final answer
    x = 19,565.55

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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.