Home / 21,335.34-29,442.57-11,775.31

Finding the Fourth Proportional to 21,335.34, 29,442.57 and 11,775.31

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Solution

The fourth proportional to 21,335.34, 29,442.57 and 11,775.31 is: 16,249.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335.34 : 29,442.57 = 11,775.31 : x
  2. Step 2: Convert to fraction form
    21,335.34/29,442.57 = 11,775.31/x
  3. Step 3: Cross multiply
    21,335.34x = 29,442.57 × 11,775.31
  4. Step 4: Simplify right side
    21,335.34x = 346,695,330.07
  5. Step 5: Solve for x
    x = 346,695,330.07/21,335.34
  6. Step 6: Final answer
    x = 16,249.82

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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.