Home / 28,226.65-42,340.05-9,519.83

Finding the Fourth Proportional to 28,226.65, 42,340.05 and 9,519.83

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Solution

The fourth proportional to 28,226.65, 42,340.05 and 9,519.83 is: 14,279.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,226.65 : 42,340.05 = 9,519.83 : x
  2. Step 2: Convert to fraction form
    28,226.65/42,340.05 = 9,519.83/x
  3. Step 3: Cross multiply
    28,226.65x = 42,340.05 × 9,519.83
  4. Step 4: Simplify right side
    28,226.65x = 403,069,895.62
  5. Step 5: Solve for x
    x = 403,069,895.62/28,226.65
  6. Step 6: Final answer
    x = 14,279.76

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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.