Home / 21,330.18-31,994.97-9,635.22

Finding the Fourth Proportional to 21,330.18, 31,994.97 and 9,635.22

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Solution

The fourth proportional to 21,330.18, 31,994.97 and 9,635.22 is: 14,452.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,330.18 : 31,994.97 = 9,635.22 : x
  2. Step 2: Convert to fraction form
    21,330.18/31,994.97 = 9,635.22/x
  3. Step 3: Cross multiply
    21,330.18x = 31,994.97 × 9,635.22
  4. Step 4: Simplify right side
    21,330.18x = 308,278,574.84
  5. Step 5: Solve for x
    x = 308,278,574.84/21,330.18
  6. Step 6: Final answer
    x = 14,452.69

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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.