Home / 19,020.12-28,539.50-9,167.55

Finding the Fourth Proportional to 19,020.12, 28,539.50 and 9,167.55

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Solution

The fourth proportional to 19,020.12, 28,539.50 and 9,167.55 is: 13,755.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,020.12 : 28,539.50 = 9,167.55 : x
  2. Step 2: Convert to fraction form
    19,020.12/28,539.50 = 9,167.55/x
  3. Step 3: Cross multiply
    19,020.12x = 28,539.50 × 9,167.55
  4. Step 4: Simplify right side
    19,020.12x = 261,637,247.39
  5. Step 5: Solve for x
    x = 261,637,247.39/19,020.12
  6. Step 6: Final answer
    x = 13,755.81

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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.