Home / 21,326.56-31,989.84-6,535.42

Finding the Fourth Proportional to 21,326.56, 31,989.84 and 6,535.42

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Solution

The fourth proportional to 21,326.56, 31,989.84 and 6,535.42 is: 9,803.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,326.56 : 31,989.84 = 6,535.42 : x
  2. Step 2: Convert to fraction form
    21,326.56/31,989.84 = 6,535.42/x
  3. Step 3: Cross multiply
    21,326.56x = 31,989.84 × 6,535.42
  4. Step 4: Simplify right side
    21,326.56x = 209,067,040.13
  5. Step 5: Solve for x
    x = 209,067,040.13/21,326.56
  6. Step 6: Final answer
    x = 9,803.13

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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.