Home / 29,129.98-40,183.14-20,182.72

Finding the Fourth Proportional to 29,129.98, 40,183.14 and 20,182.72

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Solution

The fourth proportional to 29,129.98, 40,183.14 and 20,182.72 is: 27,840.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,129.98 : 40,183.14 = 20,182.72 : x
  2. Step 2: Convert to fraction form
    29,129.98/40,183.14 = 20,182.72/x
  3. Step 3: Cross multiply
    29,129.98x = 40,183.14 × 20,182.72
  4. Step 4: Simplify right side
    29,129.98x = 811,005,063.34
  5. Step 5: Solve for x
    x = 811,005,063.34/29,129.98
  6. Step 6: Final answer
    x = 27,840.91

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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.