Home / 20,810.52-31,177.98-12,026.88

Finding the Fourth Proportional to 20,810.52, 31,177.98 and 12,026.88

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Solution

The fourth proportional to 20,810.52, 31,177.98 and 12,026.88 is: 18,018.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810.52 : 31,177.98 = 12,026.88 : x
  2. Step 2: Convert to fraction form
    20,810.52/31,177.98 = 12,026.88/x
  3. Step 3: Cross multiply
    20,810.52x = 31,177.98 × 12,026.88
  4. Step 4: Simplify right side
    20,810.52x = 374,973,824.10
  5. Step 5: Solve for x
    x = 374,973,824.10/20,810.52
  6. Step 6: Final answer
    x = 18,018.47

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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.