Home / 28,186.56-42,271.40-17,672.56

Finding the Fourth Proportional to 28,186.56, 42,271.40 and 17,672.56

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Solution

The fourth proportional to 28,186.56, 42,271.40 and 17,672.56 is: 26,503.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,186.56 : 42,271.40 = 17,672.56 : x
  2. Step 2: Convert to fraction form
    28,186.56/42,271.40 = 17,672.56/x
  3. Step 3: Cross multiply
    28,186.56x = 42,271.40 × 17,672.56
  4. Step 4: Simplify right side
    28,186.56x = 747,043,791.29
  5. Step 5: Solve for x
    x = 747,043,791.29/28,186.56
  6. Step 6: Final answer
    x = 26,503.55

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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.