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Finding the Fourth Proportional to 29,339.11, 40,486.84 and 15,910.12

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Solution

The fourth proportional to 29,339.11, 40,486.84 and 15,910.12 is: 21,955.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,339.11 : 40,486.84 = 15,910.12 : x
  2. Step 2: Convert to fraction form
    29,339.11/40,486.84 = 15,910.12/x
  3. Step 3: Cross multiply
    29,339.11x = 40,486.84 × 15,910.12
  4. Step 4: Simplify right side
    29,339.11x = 644,150,482.82
  5. Step 5: Solve for x
    x = 644,150,482.82/29,339.11
  6. Step 6: Final answer
    x = 21,955.35

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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.