Home / 21,177.07-31,725.51-14,135.85

Finding the Fourth Proportional to 21,177.07, 31,725.51 and 14,135.85

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Solution

The fourth proportional to 21,177.07, 31,725.51 and 14,135.85 is: 21,177.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177.07 : 31,725.51 = 14,135.85 : x
  2. Step 2: Convert to fraction form
    21,177.07/31,725.51 = 14,135.85/x
  3. Step 3: Cross multiply
    21,177.07x = 31,725.51 × 14,135.85
  4. Step 4: Simplify right side
    21,177.07x = 448,466,997.52
  5. Step 5: Solve for x
    x = 448,466,997.52/21,177.07
  6. Step 6: Final answer
    x = 21,177.01

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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.