Home / 21,034,899.72-28,817,678.31-20,248,294.14

Finding the Fourth Proportional to 21,034,899.72, 28,817,678.31 and 20,248,294.14

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Solution

The fourth proportional to 21,034,899.72, 28,817,678.31 and 20,248,294.14 is: 27,740,033.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,034,899.72 : 28,817,678.31 = 20,248,294.14 : x
  2. Step 2: Convert to fraction form
    21,034,899.72/28,817,678.31 = 20,248,294.14/x
  3. Step 3: Cross multiply
    21,034,899.72x = 28,817,678.31 × 20,248,294.14
  4. Step 4: Simplify right side
    21,034,899.72x = 583,508,826,776,847
  5. Step 5: Solve for x
    x = 583,508,826,776,847/21,034,899.72
  6. Step 6: Final answer
    x = 27,740,033.68

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.