Home / 34,123.20-51,185.40-21,304.32

Finding the Fourth Proportional to 34,123.20, 51,185.40 and 21,304.32

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Solution

The fourth proportional to 34,123.20, 51,185.40 and 21,304.32 is: 31,956.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,123.20 : 51,185.40 = 21,304.32 : x
  2. Step 2: Convert to fraction form
    34,123.20/51,185.40 = 21,304.32/x
  3. Step 3: Cross multiply
    34,123.20x = 51,185.40 × 21,304.32
  4. Step 4: Simplify right side
    34,123.20x = 1,090,470,140.93
  5. Step 5: Solve for x
    x = 1,090,470,140.93/34,123.20
  6. Step 6: Final answer
    x = 31,956.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.