Home / 21,404.98-32,095.87-11,920.22

Finding the Fourth Proportional to 21,404.98, 32,095.87 and 11,920.22

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Solution

The fourth proportional to 21,404.98, 32,095.87 and 11,920.22 is: 17,873.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.98 : 32,095.87 = 11,920.22 : x
  2. Step 2: Convert to fraction form
    21,404.98/32,095.87 = 11,920.22/x
  3. Step 3: Cross multiply
    21,404.98x = 32,095.87 × 11,920.22
  4. Step 4: Simplify right side
    21,404.98x = 382,589,831.49
  5. Step 5: Solve for x
    x = 382,589,831.49/21,404.98
  6. Step 6: Final answer
    x = 17,873.87

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1.5x scale

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.