Home / 21,989.02-30,351.55-17,543.33

Finding the Fourth Proportional to 21,989.02, 30,351.55 and 17,543.33

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Solution

The fourth proportional to 21,989.02, 30,351.55 and 17,543.33 is: 24,215.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,989.02 : 30,351.55 = 17,543.33 : x
  2. Step 2: Convert to fraction form
    21,989.02/30,351.55 = 17,543.33/x
  3. Step 3: Cross multiply
    21,989.02x = 30,351.55 × 17,543.33
  4. Step 4: Simplify right side
    21,989.02x = 532,467,257.66
  5. Step 5: Solve for x
    x = 532,467,257.66/21,989.02
  6. Step 6: Final answer
    x = 24,215.15

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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.