Home / 19,764.76-29,648.70-5,725

Finding the Fourth Proportional to 19,764.76, 29,648.70 and 5,725

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Solution

The fourth proportional to 19,764.76, 29,648.70 and 5,725 is: 8,587.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,764.76 : 29,648.70 = 5,725 : x
  2. Step 2: Convert to fraction form
    19,764.76/29,648.70 = 5,725/x
  3. Step 3: Cross multiply
    19,764.76x = 29,648.70 × 5,725
  4. Step 4: Simplify right side
    19,764.76x = 169,738,807.50
  5. Step 5: Solve for x
    x = 169,738,807.50/19,764.76
  6. Step 6: Final answer
    x = 8,587.95

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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.