Home / 20,641.28-30,955.84-5,851.49

Finding the Fourth Proportional to 20,641.28, 30,955.84 and 5,851.49

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Solution

The fourth proportional to 20,641.28, 30,955.84 and 5,851.49 is: 8,775.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,641.28 : 30,955.84 = 5,851.49 : x
  2. Step 2: Convert to fraction form
    20,641.28/30,955.84 = 5,851.49/x
  3. Step 3: Cross multiply
    20,641.28x = 30,955.84 × 5,851.49
  4. Step 4: Simplify right side
    20,641.28x = 181,137,618.79
  5. Step 5: Solve for x
    x = 181,137,618.79/20,641.28
  6. Step 6: Final answer
    x = 8,775.51

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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.