Home / 29,314.85-40,454.40-15,886.44

Finding the Fourth Proportional to 29,314.85, 40,454.40 and 15,886.44

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Solution

The fourth proportional to 29,314.85, 40,454.40 and 15,886.44 is: 21,923.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,314.85 : 40,454.40 = 15,886.44 : x
  2. Step 2: Convert to fraction form
    29,314.85/40,454.40 = 15,886.44/x
  3. Step 3: Cross multiply
    29,314.85x = 40,454.40 × 15,886.44
  4. Step 4: Simplify right side
    29,314.85x = 642,676,398.34
  5. Step 5: Solve for x
    x = 642,676,398.34/29,314.85
  6. Step 6: Final answer
    x = 21,923.24

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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.