Home / 28,246.71-42,370.30-7,186.77

Finding the Fourth Proportional to 28,246.71, 42,370.30 and 7,186.77

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Solution

The fourth proportional to 28,246.71, 42,370.30 and 7,186.77 is: 10,780.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246.71 : 42,370.30 = 7,186.77 : x
  2. Step 2: Convert to fraction form
    28,246.71/42,370.30 = 7,186.77/x
  3. Step 3: Cross multiply
    28,246.71x = 42,370.30 × 7,186.77
  4. Step 4: Simplify right side
    28,246.71x = 304,505,600.93
  5. Step 5: Solve for x
    x = 304,505,600.93/28,246.71
  6. Step 6: Final answer
    x = 10,780.21

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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.