Home / 28,247.18-42,319.14-13,226.74

Finding the Fourth Proportional to 28,247.18, 42,319.14 and 13,226.74

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Solution

The fourth proportional to 28,247.18, 42,319.14 and 13,226.74 is: 19,815.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.18 : 42,319.14 = 13,226.74 : x
  2. Step 2: Convert to fraction form
    28,247.18/42,319.14 = 13,226.74/x
  3. Step 3: Cross multiply
    28,247.18x = 42,319.14 × 13,226.74
  4. Step 4: Simplify right side
    28,247.18x = 559,744,261.80
  5. Step 5: Solve for x
    x = 559,744,261.80/28,247.18
  6. Step 6: Final answer
    x = 19,815.93

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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.