Home / 18,947.12-28,421.22-5,799.20

Finding the Fourth Proportional to 18,947.12, 28,421.22 and 5,799.20

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Solution

The fourth proportional to 18,947.12, 28,421.22 and 5,799.20 is: 8,698.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.12 : 28,421.22 = 5,799.20 : x
  2. Step 2: Convert to fraction form
    18,947.12/28,421.22 = 5,799.20/x
  3. Step 3: Cross multiply
    18,947.12x = 28,421.22 × 5,799.20
  4. Step 4: Simplify right side
    18,947.12x = 164,820,339.02
  5. Step 5: Solve for x
    x = 164,820,339.02/18,947.12
  6. Step 6: Final answer
    x = 8,698.97

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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.