Home / 28,341.95-42,500.61-8,615.90

Finding the Fourth Proportional to 28,341.95, 42,500.61 and 8,615.90

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Solution

The fourth proportional to 28,341.95, 42,500.61 and 8,615.90 is: 12,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341.95 : 42,500.61 = 8,615.90 : x
  2. Step 2: Convert to fraction form
    28,341.95/42,500.61 = 8,615.90/x
  3. Step 3: Cross multiply
    28,341.95x = 42,500.61 × 8,615.90
  4. Step 4: Simplify right side
    28,341.95x = 366,180,793.20
  5. Step 5: Solve for x
    x = 366,180,793.20/28,341.95
  6. Step 6: Final answer
    x = 12,920.10

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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.