Home / 28,395.25-39,184.98-15,474.70

Finding the Fourth Proportional to 28,395.25, 39,184.98 and 15,474.70

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Solution

The fourth proportional to 28,395.25, 39,184.98 and 15,474.70 is: 21,354.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,395.25 : 39,184.98 = 15,474.70 : x
  2. Step 2: Convert to fraction form
    28,395.25/39,184.98 = 15,474.70/x
  3. Step 3: Cross multiply
    28,395.25x = 39,184.98 × 15,474.70
  4. Step 4: Simplify right side
    28,395.25x = 606,375,810.01
  5. Step 5: Solve for x
    x = 606,375,810.01/28,395.25
  6. Step 6: Final answer
    x = 21,354.83

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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.