Home / 20,111.04-30,159.36-6,959.88

Finding the Fourth Proportional to 20,111.04, 30,159.36 and 6,959.88

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Solution

The fourth proportional to 20,111.04, 30,159.36 and 6,959.88 is: 10,437.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111.04 : 30,159.36 = 6,959.88 : x
  2. Step 2: Convert to fraction form
    20,111.04/30,159.36 = 6,959.88/x
  3. Step 3: Cross multiply
    20,111.04x = 30,159.36 × 6,959.88
  4. Step 4: Simplify right side
    20,111.04x = 209,905,526.48
  5. Step 5: Solve for x
    x = 209,905,526.48/20,111.04
  6. Step 6: Final answer
    x = 10,437.33

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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.