Home / 28,345.80-42,524.85-8,623.85

Finding the Fourth Proportional to 28,345.80, 42,524.85 and 8,623.85

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Solution

The fourth proportional to 28,345.80, 42,524.85 and 8,623.85 is: 12,937.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,345.80 : 42,524.85 = 8,623.85 : x
  2. Step 2: Convert to fraction form
    28,345.80/42,524.85 = 8,623.85/x
  3. Step 3: Cross multiply
    28,345.80x = 42,524.85 × 8,623.85
  4. Step 4: Simplify right side
    28,345.80x = 366,727,715.05
  5. Step 5: Solve for x
    x = 366,727,715.05/28,345.80
  6. Step 6: Final answer
    x = 12,937.64

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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.