Home / 21,835.13-32,752.69-5,419.13

Finding the Fourth Proportional to 21,835.13, 32,752.69 and 5,419.13

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Solution

The fourth proportional to 21,835.13, 32,752.69 and 5,419.13 is: 8,128.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,835.13 : 32,752.69 = 5,419.13 : x
  2. Step 2: Convert to fraction form
    21,835.13/32,752.69 = 5,419.13/x
  3. Step 3: Cross multiply
    21,835.13x = 32,752.69 × 5,419.13
  4. Step 4: Simplify right side
    21,835.13x = 177,490,907.65
  5. Step 5: Solve for x
    x = 177,490,907.65/21,835.13
  6. Step 6: Final answer
    x = 8,128.69

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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.