Home / 25,279.85-37,860.64-19,979.28

Finding the Fourth Proportional to 25,279.85, 37,860.64 and 19,979.28

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Solution

The fourth proportional to 25,279.85, 37,860.64 and 19,979.28 is: 29,922.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,279.85 : 37,860.64 = 19,979.28 : x
  2. Step 2: Convert to fraction form
    25,279.85/37,860.64 = 19,979.28/x
  3. Step 3: Cross multiply
    25,279.85x = 37,860.64 × 19,979.28
  4. Step 4: Simplify right side
    25,279.85x = 756,428,440.27
  5. Step 5: Solve for x
    x = 756,428,440.27/25,279.85
  6. Step 6: Final answer
    x = 29,922.19

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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.