Home / 19,655.16-29,488.38-9,791.88

Finding the Fourth Proportional to 19,655.16, 29,488.38 and 9,791.88

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Solution

The fourth proportional to 19,655.16, 29,488.38 and 9,791.88 is: 14,690.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,655.16 : 29,488.38 = 9,791.88 : x
  2. Step 2: Convert to fraction form
    19,655.16/29,488.38 = 9,791.88/x
  3. Step 3: Cross multiply
    19,655.16x = 29,488.38 × 9,791.88
  4. Step 4: Simplify right side
    19,655.16x = 288,746,678.35
  5. Step 5: Solve for x
    x = 288,746,678.35/19,655.16
  6. Step 6: Final answer
    x = 14,690.63

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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.