Home / 28,805.76-43,364.26-25,909.12

Finding the Fourth Proportional to 28,805.76, 43,364.26 and 25,909.12

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Solution

The fourth proportional to 28,805.76, 43,364.26 and 25,909.12 is: 39,003.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,805.76 : 43,364.26 = 25,909.12 : x
  2. Step 2: Convert to fraction form
    28,805.76/43,364.26 = 25,909.12/x
  3. Step 3: Cross multiply
    28,805.76x = 43,364.26 × 25,909.12
  4. Step 4: Simplify right side
    28,805.76x = 1,123,529,642.87
  5. Step 5: Solve for x
    x = 1,123,529,642.87/28,805.76
  6. Step 6: Final answer
    x = 39,003.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.