Home / 28,389.87-42,591.03-8,397.80

Finding the Fourth Proportional to 28,389.87, 42,591.03 and 8,397.80

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Solution

The fourth proportional to 28,389.87, 42,591.03 and 8,397.80 is: 12,598.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,389.87 : 42,591.03 = 8,397.80 : x
  2. Step 2: Convert to fraction form
    28,389.87/42,591.03 = 8,397.80/x
  3. Step 3: Cross multiply
    28,389.87x = 42,591.03 × 8,397.80
  4. Step 4: Simplify right side
    28,389.87x = 357,670,738.78
  5. Step 5: Solve for x
    x = 357,670,738.78/28,389.87
  6. Step 6: Final answer
    x = 12,598.54

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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.