Home / 28,226.40-42,339.67-9,519.58

Finding the Fourth Proportional to 28,226.40, 42,339.67 and 9,519.58

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Solution

The fourth proportional to 28,226.40, 42,339.67 and 9,519.58 is: 14,279.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,226.40 : 42,339.67 = 9,519.58 : x
  2. Step 2: Convert to fraction form
    28,226.40/42,339.67 = 9,519.58/x
  3. Step 3: Cross multiply
    28,226.40x = 42,339.67 × 9,519.58
  4. Step 4: Simplify right side
    28,226.40x = 403,055,740.76
  5. Step 5: Solve for x
    x = 403,055,740.76/28,226.40
  6. Step 6: Final answer
    x = 14,279.39

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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.