Home / 19,429.12-29,146.92-6,279.96

Finding the Fourth Proportional to 19,429.12, 29,146.92 and 6,279.96

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Solution

The fourth proportional to 19,429.12, 29,146.92 and 6,279.96 is: 9,420.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,429.12 : 29,146.92 = 6,279.96 : x
  2. Step 2: Convert to fraction form
    19,429.12/29,146.92 = 6,279.96/x
  3. Step 3: Cross multiply
    19,429.12x = 29,146.92 × 6,279.96
  4. Step 4: Simplify right side
    19,429.12x = 183,041,491.72
  5. Step 5: Solve for x
    x = 183,041,491.72/19,429.12
  6. Step 6: Final answer
    x = 9,420.99

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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.