Home / 28,889.30-39,867.29-17,555.78

Finding the Fourth Proportional to 28,889.30, 39,867.29 and 17,555.78

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Solution

The fourth proportional to 28,889.30, 39,867.29 and 17,555.78 is: 24,227.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,889.30 : 39,867.29 = 17,555.78 : x
  2. Step 2: Convert to fraction form
    28,889.30/39,867.29 = 17,555.78/x
  3. Step 3: Cross multiply
    28,889.30x = 39,867.29 × 17,555.78
  4. Step 4: Simplify right side
    28,889.30x = 699,901,372.44
  5. Step 5: Solve for x
    x = 699,901,372.44/28,889.30
  6. Step 6: Final answer
    x = 24,227.01

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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.