Home / 20,957.52-31,432.80-6,164.72

Finding the Fourth Proportional to 20,957.52, 31,432.80 and 6,164.72

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Solution

The fourth proportional to 20,957.52, 31,432.80 and 6,164.72 is: 9,246.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,957.52 : 31,432.80 = 6,164.72 : x
  2. Step 2: Convert to fraction form
    20,957.52/31,432.80 = 6,164.72/x
  3. Step 3: Cross multiply
    20,957.52x = 31,432.80 × 6,164.72
  4. Step 4: Simplify right side
    20,957.52x = 193,774,410.82
  5. Step 5: Solve for x
    x = 193,774,410.82/20,957.52
  6. Step 6: Final answer
    x = 9,246.06

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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.