Home / 21,335,306.24-29,442,721.60-11,545,750.72

Finding the Fourth Proportional to 21,335,306.24, 29,442,721.60 and 11,545,750.72

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Solution

The fourth proportional to 21,335,306.24, 29,442,721.60 and 11,545,750.72 is: 15,933,135.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335,306.24 : 29,442,721.60 = 11,545,750.72 : x
  2. Step 2: Convert to fraction form
    21,335,306.24/29,442,721.60 = 11,545,750.72/x
  3. Step 3: Cross multiply
    21,335,306.24x = 29,442,721.60 × 11,545,750.72
  4. Step 4: Simplify right side
    21,335,306.24x = 339,938,324,111,959.56
  5. Step 5: Solve for x
    x = 339,938,324,111,959.56/21,335,306.24
  6. Step 6: Final answer
    x = 15,933,135.45

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1.5x scale

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.