Home / 19,518.98-29,278.55-4,727.88

Finding the Fourth Proportional to 19,518.98, 29,278.55 and 4,727.88

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Solution

The fourth proportional to 19,518.98, 29,278.55 and 4,727.88 is: 7,091.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518.98 : 29,278.55 = 4,727.88 : x
  2. Step 2: Convert to fraction form
    19,518.98/29,278.55 = 4,727.88/x
  3. Step 3: Cross multiply
    19,518.98x = 29,278.55 × 4,727.88
  4. Step 4: Simplify right side
    19,518.98x = 138,425,470.97
  5. Step 5: Solve for x
    x = 138,425,470.97/19,518.98
  6. Step 6: Final answer
    x = 7,091.84

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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.