Home / 28,352.66-39,126.36-15,605.57

Finding the Fourth Proportional to 28,352.66, 39,126.36 and 15,605.57

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Solution

The fourth proportional to 28,352.66, 39,126.36 and 15,605.57 is: 21,535.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,352.66 : 39,126.36 = 15,605.57 : x
  2. Step 2: Convert to fraction form
    28,352.66/39,126.36 = 15,605.57/x
  3. Step 3: Cross multiply
    28,352.66x = 39,126.36 × 15,605.57
  4. Step 4: Simplify right side
    28,352.66x = 610,589,251.14
  5. Step 5: Solve for x
    x = 610,589,251.14/28,352.66
  6. Step 6: Final answer
    x = 21,535.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.