Home / 19,317.13-28,959.23-18,759.44

Finding the Fourth Proportional to 19,317.13, 28,959.23 and 18,759.44

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Solution

The fourth proportional to 19,317.13, 28,959.23 and 18,759.44 is: 28,123.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,317.13 : 28,959.23 = 18,759.44 : x
  2. Step 2: Convert to fraction form
    19,317.13/28,959.23 = 18,759.44/x
  3. Step 3: Cross multiply
    19,317.13x = 28,959.23 × 18,759.44
  4. Step 4: Simplify right side
    19,317.13x = 543,259,056.93
  5. Step 5: Solve for x
    x = 543,259,056.93/19,317.13
  6. Step 6: Final answer
    x = 28,123.18

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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.