Home / 19,518.91-29,278.26-4,727.82

Finding the Fourth Proportional to 19,518.91, 29,278.26 and 4,727.82

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Solution

The fourth proportional to 19,518.91, 29,278.26 and 4,727.82 is: 7,091.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518.91 : 29,278.26 = 4,727.82 : x
  2. Step 2: Convert to fraction form
    19,518.91/29,278.26 = 4,727.82/x
  3. Step 3: Cross multiply
    19,518.91x = 29,278.26 × 4,727.82
  4. Step 4: Simplify right side
    19,518.91x = 138,422,343.19
  5. Step 5: Solve for x
    x = 138,422,343.19/19,518.91
  6. Step 6: Final answer
    x = 7,091.70

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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.