Home / 19,229.72-28,871.13-13,291.98

Finding the Fourth Proportional to 19,229.72, 28,871.13 and 13,291.98

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Solution

The fourth proportional to 19,229.72, 28,871.13 and 13,291.98 is: 19,956.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,229.72 : 28,871.13 = 13,291.98 : x
  2. Step 2: Convert to fraction form
    19,229.72/28,871.13 = 13,291.98/x
  3. Step 3: Cross multiply
    19,229.72x = 28,871.13 × 13,291.98
  4. Step 4: Simplify right side
    19,229.72x = 383,754,482.54
  5. Step 5: Solve for x
    x = 383,754,482.54/19,229.72
  6. Step 6: Final answer
    x = 19,956.32

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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.