Home / 21,326.05-31,994.75-7,286.05

Finding the Fourth Proportional to 21,326.05, 31,994.75 and 7,286.05

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Solution

The fourth proportional to 21,326.05, 31,994.75 and 7,286.05 is: 10,931.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,326.05 : 31,994.75 = 7,286.05 : x
  2. Step 2: Convert to fraction form
    21,326.05/31,994.75 = 7,286.05/x
  3. Step 3: Cross multiply
    21,326.05x = 31,994.75 × 7,286.05
  4. Step 4: Simplify right side
    21,326.05x = 233,115,348.24
  5. Step 5: Solve for x
    x = 233,115,348.24/21,326.05
  6. Step 6: Final answer
    x = 10,931.01

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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.