Home / 19,249.20-26,539.20-15,787.02

Finding the Fourth Proportional to 19,249.20, 26,539.20 and 15,787.02

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Solution

The fourth proportional to 19,249.20, 26,539.20 and 15,787.02 is: 21,765.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,249.20 : 26,539.20 = 15,787.02 : x
  2. Step 2: Convert to fraction form
    19,249.20/26,539.20 = 15,787.02/x
  3. Step 3: Cross multiply
    19,249.20x = 26,539.20 × 15,787.02
  4. Step 4: Simplify right side
    19,249.20x = 418,974,881.18
  5. Step 5: Solve for x
    x = 418,974,881.18/19,249.20
  6. Step 6: Final answer
    x = 21,765.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.