Home / 19,200.48-28,732.29-13,278.57

Finding the Fourth Proportional to 19,200.48, 28,732.29 and 13,278.57

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Solution

The fourth proportional to 19,200.48, 28,732.29 and 13,278.57 is: 19,870.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200.48 : 28,732.29 = 13,278.57 : x
  2. Step 2: Convert to fraction form
    19,200.48/28,732.29 = 13,278.57/x
  3. Step 3: Cross multiply
    19,200.48x = 28,732.29 × 13,278.57
  4. Step 4: Simplify right side
    19,200.48x = 381,523,724.03
  5. Step 5: Solve for x
    x = 381,523,724.03/19,200.48
  6. Step 6: Final answer
    x = 19,870.53

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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.