Home / 28,226.78-42,340.24-9,519.95

Finding the Fourth Proportional to 28,226.78, 42,340.24 and 9,519.95

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Solution

The fourth proportional to 28,226.78, 42,340.24 and 9,519.95 is: 14,279.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,226.78 : 42,340.24 = 9,519.95 : x
  2. Step 2: Convert to fraction form
    28,226.78/42,340.24 = 9,519.95/x
  3. Step 3: Cross multiply
    28,226.78x = 42,340.24 × 9,519.95
  4. Step 4: Simplify right side
    28,226.78x = 403,076,920.19
  5. Step 5: Solve for x
    x = 403,076,920.19/28,226.78
  6. Step 6: Final answer
    x = 14,279.95

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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.