Home / 29,390.40-40,558.80-15,961.68

Finding the Fourth Proportional to 29,390.40, 40,558.80 and 15,961.68

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Solution

The fourth proportional to 29,390.40, 40,558.80 and 15,961.68 is: 22,027.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,390.40 : 40,558.80 = 15,961.68 : x
  2. Step 2: Convert to fraction form
    29,390.40/40,558.80 = 15,961.68/x
  3. Step 3: Cross multiply
    29,390.40x = 40,558.80 × 15,961.68
  4. Step 4: Simplify right side
    29,390.40x = 647,386,586.78
  5. Step 5: Solve for x
    x = 647,386,586.78/29,390.40
  6. Step 6: Final answer
    x = 22,027.14

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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.