Home / 20,808,013.95-31,212,020.93-17,025,767.55

Finding the Fourth Proportional to 20,808,013.95, 31,212,020.93 and 17,025,767.55

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Solution

The fourth proportional to 20,808,013.95, 31,212,020.93 and 17,025,767.55 is: 25,538,651.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,808,013.95 : 31,212,020.93 = 17,025,767.55 : x
  2. Step 2: Convert to fraction form
    20,808,013.95/31,212,020.93 = 17,025,767.55/x
  3. Step 3: Cross multiply
    20,808,013.95x = 31,212,020.93 × 17,025,767.55
  4. Step 4: Simplify right side
    20,808,013.95x = 531,408,613,034,786
  5. Step 5: Solve for x
    x = 531,408,613,034,786/20,808,013.95
  6. Step 6: Final answer
    x = 25,538,651.33

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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.