Home / 28,862.60-43,272.30-15,729.80

Finding the Fourth Proportional to 28,862.60, 43,272.30 and 15,729.80

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Solution

The fourth proportional to 28,862.60, 43,272.30 and 15,729.80 is: 23,582.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,862.60 : 43,272.30 = 15,729.80 : x
  2. Step 2: Convert to fraction form
    28,862.60/43,272.30 = 15,729.80/x
  3. Step 3: Cross multiply
    28,862.60x = 43,272.30 × 15,729.80
  4. Step 4: Simplify right side
    28,862.60x = 680,664,624.54
  5. Step 5: Solve for x
    x = 680,664,624.54/28,862.60
  6. Step 6: Final answer
    x = 23,582.93

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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.