Home / 20,692,959.17-28,556,291.54-11,996,173.25

Finding the Fourth Proportional to 20,692,959.17, 28,556,291.54 and 11,996,173.25

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Solution

The fourth proportional to 20,692,959.17, 28,556,291.54 and 11,996,173.25 is: 16,554,723.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,692,959.17 : 28,556,291.54 = 11,996,173.25 : x
  2. Step 2: Convert to fraction form
    20,692,959.17/28,556,291.54 = 11,996,173.25/x
  3. Step 3: Cross multiply
    20,692,959.17x = 28,556,291.54 × 11,996,173.25
  4. Step 4: Simplify right side
    20,692,959.17x = 342,566,220,488,586.94
  5. Step 5: Solve for x
    x = 342,566,220,488,586.94/20,692,959.17
  6. Step 6: Final answer
    x = 16,554,723.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.