Home / 28,375.35-39,156.47-16,275.21

Finding the Fourth Proportional to 28,375.35, 39,156.47 and 16,275.21

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Solution

The fourth proportional to 28,375.35, 39,156.47 and 16,275.21 is: 22,458.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,375.35 : 39,156.47 = 16,275.21 : x
  2. Step 2: Convert to fraction form
    28,375.35/39,156.47 = 16,275.21/x
  3. Step 3: Cross multiply
    28,375.35x = 39,156.47 × 16,275.21
  4. Step 4: Simplify right side
    28,375.35x = 637,279,494.95
  5. Step 5: Solve for x
    x = 637,279,494.95/28,375.35
  6. Step 6: Final answer
    x = 22,458.92

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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.