Home / 28,482.45-42,724.35-8,761.19

Finding the Fourth Proportional to 28,482.45, 42,724.35 and 8,761.19

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Solution

The fourth proportional to 28,482.45, 42,724.35 and 8,761.19 is: 13,141.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,482.45 : 42,724.35 = 8,761.19 : x
  2. Step 2: Convert to fraction form
    28,482.45/42,724.35 = 8,761.19/x
  3. Step 3: Cross multiply
    28,482.45x = 42,724.35 × 8,761.19
  4. Step 4: Simplify right side
    28,482.45x = 374,315,934.35
  5. Step 5: Solve for x
    x = 374,315,934.35/28,482.45
  6. Step 6: Final answer
    x = 13,141.99

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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.