Home / 28,809.80-43,251.15-15,493.40

Finding the Fourth Proportional to 28,809.80, 43,251.15 and 15,493.40

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Solution

The fourth proportional to 28,809.80, 43,251.15 and 15,493.40 is: 23,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,809.80 : 43,251.15 = 15,493.40 : x
  2. Step 2: Convert to fraction form
    28,809.80/43,251.15 = 15,493.40/x
  3. Step 3: Cross multiply
    28,809.80x = 43,251.15 × 15,493.40
  4. Step 4: Simplify right side
    28,809.80x = 670,107,367.41
  5. Step 5: Solve for x
    x = 670,107,367.41/28,809.80
  6. Step 6: Final answer
    x = 23,259.70

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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.