Home / 21,303.13-29,397.91-12,351.46

Finding the Fourth Proportional to 21,303.13, 29,397.91 and 12,351.46

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Solution

The fourth proportional to 21,303.13, 29,397.91 and 12,351.46 is: 17,044.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303.13 : 29,397.91 = 12,351.46 : x
  2. Step 2: Convert to fraction form
    21,303.13/29,397.91 = 12,351.46/x
  3. Step 3: Cross multiply
    21,303.13x = 29,397.91 × 12,351.46
  4. Step 4: Simplify right side
    21,303.13x = 363,107,200.78
  5. Step 5: Solve for x
    x = 363,107,200.78/21,303.13
  6. Step 6: Final answer
    x = 17,044.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.