Home / 28,327.65-42,486.21-13,126.61

Finding the Fourth Proportional to 28,327.65, 42,486.21 and 13,126.61

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Solution

The fourth proportional to 28,327.65, 42,486.21 and 13,126.61 is: 19,687.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,327.65 : 42,486.21 = 13,126.61 : x
  2. Step 2: Convert to fraction form
    28,327.65/42,486.21 = 13,126.61/x
  3. Step 3: Cross multiply
    28,327.65x = 42,486.21 × 13,126.61
  4. Step 4: Simplify right side
    28,327.65x = 557,699,696.62
  5. Step 5: Solve for x
    x = 557,699,696.62/28,327.65
  6. Step 6: Final answer
    x = 19,687.47

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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.