Home / 28,250.72-38,993.16-19,301.84

Finding the Fourth Proportional to 28,250.72, 38,993.16 and 19,301.84

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Solution

The fourth proportional to 28,250.72, 38,993.16 and 19,301.84 is: 26,641.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.72 : 38,993.16 = 19,301.84 : x
  2. Step 2: Convert to fraction form
    28,250.72/38,993.16 = 19,301.84/x
  3. Step 3: Cross multiply
    28,250.72x = 38,993.16 × 19,301.84
  4. Step 4: Simplify right side
    28,250.72x = 752,639,735.41
  5. Step 5: Solve for x
    x = 752,639,735.41/28,250.72
  6. Step 6: Final answer
    x = 26,641.44

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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.