Home / 21,217.04-31,836.48-8,746.28

Finding the Fourth Proportional to 21,217.04, 31,836.48 and 8,746.28

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Solution

The fourth proportional to 21,217.04, 31,836.48 and 8,746.28 is: 13,123.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,217.04 : 31,836.48 = 8,746.28 : x
  2. Step 2: Convert to fraction form
    21,217.04/31,836.48 = 8,746.28/x
  3. Step 3: Cross multiply
    21,217.04x = 31,836.48 × 8,746.28
  4. Step 4: Simplify right side
    21,217.04x = 278,450,768.29
  5. Step 5: Solve for x
    x = 278,450,768.29/21,217.04
  6. Step 6: Final answer
    x = 13,123.92

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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.