Home / 18,985.57-28,539.82-17,615.96

Finding the Fourth Proportional to 18,985.57, 28,539.82 and 17,615.96

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Solution

The fourth proportional to 18,985.57, 28,539.82 and 17,615.96 is: 26,480.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.57 : 28,539.82 = 17,615.96 : x
  2. Step 2: Convert to fraction form
    18,985.57/28,539.82 = 17,615.96/x
  3. Step 3: Cross multiply
    18,985.57x = 28,539.82 × 17,615.96
  4. Step 4: Simplify right side
    18,985.57x = 502,756,327.53
  5. Step 5: Solve for x
    x = 502,756,327.53/18,985.57
  6. Step 6: Final answer
    x = 26,480.97

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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.