Home / 19,959.24-29,937.24-7,788.72

Finding the Fourth Proportional to 19,959.24, 29,937.24 and 7,788.72

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Solution

The fourth proportional to 19,959.24, 29,937.24 and 7,788.72 is: 11,682.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959.24 : 29,937.24 = 7,788.72 : x
  2. Step 2: Convert to fraction form
    19,959.24/29,937.24 = 7,788.72/x
  3. Step 3: Cross multiply
    19,959.24x = 29,937.24 × 7,788.72
  4. Step 4: Simplify right side
    19,959.24x = 233,172,779.93
  5. Step 5: Solve for x
    x = 233,172,779.93/19,959.24
  6. Step 6: Final answer
    x = 11,682.45

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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.