Home / 31,764.62-47,647.91-11,779.08

Finding the Fourth Proportional to 31,764.62, 47,647.91 and 11,779.08

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Solution

The fourth proportional to 31,764.62, 47,647.91 and 11,779.08 is: 17,668.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,764.62 : 47,647.91 = 11,779.08 : x
  2. Step 2: Convert to fraction form
    31,764.62/47,647.91 = 11,779.08/x
  3. Step 3: Cross multiply
    31,764.62x = 47,647.91 × 11,779.08
  4. Step 4: Simplify right side
    31,764.62x = 561,248,573.17
  5. Step 5: Solve for x
    x = 561,248,573.17/31,764.62
  6. Step 6: Final answer
    x = 17,668.99

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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.