Home / 20,858,021.10-31,287,031.65-14,487,921.90

Finding the Fourth Proportional to 20,858,021.10, 31,287,031.65 and 14,487,921.90

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Solution

The fourth proportional to 20,858,021.10, 31,287,031.65 and 14,487,921.90 is: 21,731,882.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,858,021.10 : 31,287,031.65 = 14,487,921.90 : x
  2. Step 2: Convert to fraction form
    20,858,021.10/31,287,031.65 = 14,487,921.90/x
  3. Step 3: Cross multiply
    20,858,021.10x = 31,287,031.65 × 14,487,921.90
  4. Step 4: Simplify right side
    20,858,021.10x = 453,284,071,028,028.12
  5. Step 5: Solve for x
    x = 453,284,071,028,028.12/20,858,021.10
  6. Step 6: Final answer
    x = 21,731,882.85

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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.