Home / 21,234.03-29,303.42-11,802.39

Finding the Fourth Proportional to 21,234.03, 29,303.42 and 11,802.39

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Solution

The fourth proportional to 21,234.03, 29,303.42 and 11,802.39 is: 16,287.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,234.03 : 29,303.42 = 11,802.39 : x
  2. Step 2: Convert to fraction form
    21,234.03/29,303.42 = 11,802.39/x
  3. Step 3: Cross multiply
    21,234.03x = 29,303.42 × 11,802.39
  4. Step 4: Simplify right side
    21,234.03x = 345,850,332.16
  5. Step 5: Solve for x
    x = 345,850,332.16/21,234.03
  6. Step 6: Final answer
    x = 16,287.55

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1.5x scale

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.