Home / 28,391.90-42,555.56-17,274.08

Finding the Fourth Proportional to 28,391.90, 42,555.56 and 17,274.08

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Solution

The fourth proportional to 28,391.90, 42,555.56 and 17,274.08 is: 25,891.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,391.90 : 42,555.56 = 17,274.08 : x
  2. Step 2: Convert to fraction form
    28,391.90/42,555.56 = 17,274.08/x
  3. Step 3: Cross multiply
    28,391.90x = 42,555.56 × 17,274.08
  4. Step 4: Simplify right side
    28,391.90x = 735,108,167.90
  5. Step 5: Solve for x
    x = 735,108,167.90/28,391.90
  6. Step 6: Final answer
    x = 25,891.48

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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.