Home / 20,642.06-30,955.01-7,309.91

Finding the Fourth Proportional to 20,642.06, 30,955.01 and 7,309.91

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Solution

The fourth proportional to 20,642.06, 30,955.01 and 7,309.91 is: 10,962.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,642.06 : 30,955.01 = 7,309.91 : x
  2. Step 2: Convert to fraction form
    20,642.06/30,955.01 = 7,309.91/x
  3. Step 3: Cross multiply
    20,642.06x = 30,955.01 × 7,309.91
  4. Step 4: Simplify right side
    20,642.06x = 226,278,145.82
  5. Step 5: Solve for x
    x = 226,278,145.82/20,642.06
  6. Step 6: Final answer
    x = 10,962.00

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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.