Home / 21,271.13-31,893.02-10,177.57

Finding the Fourth Proportional to 21,271.13, 31,893.02 and 10,177.57

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Solution

The fourth proportional to 21,271.13, 31,893.02 and 10,177.57 is: 15,259.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,271.13 : 31,893.02 = 10,177.57 : x
  2. Step 2: Convert to fraction form
    21,271.13/31,893.02 = 10,177.57/x
  3. Step 3: Cross multiply
    21,271.13x = 31,893.02 × 10,177.57
  4. Step 4: Simplify right side
    21,271.13x = 324,593,443.56
  5. Step 5: Solve for x
    x = 324,593,443.56/21,271.13
  6. Step 6: Final answer
    x = 15,259.81

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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.