Home / 21,009.74-31,497.96-10,474.02

Finding the Fourth Proportional to 21,009.74, 31,497.96 and 10,474.02

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Solution

The fourth proportional to 21,009.74, 31,497.96 and 10,474.02 is: 15,702.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,009.74 : 31,497.96 = 10,474.02 : x
  2. Step 2: Convert to fraction form
    21,009.74/31,497.96 = 10,474.02/x
  3. Step 3: Cross multiply
    21,009.74x = 31,497.96 × 10,474.02
  4. Step 4: Simplify right side
    21,009.74x = 329,910,263.00
  5. Step 5: Solve for x
    x = 329,910,263.00/21,009.74
  6. Step 6: Final answer
    x = 15,702.73

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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.