Home / 34,288.32-51,425.28-13,221.12

Finding the Fourth Proportional to 34,288.32, 51,425.28 and 13,221.12

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Solution

The fourth proportional to 34,288.32, 51,425.28 and 13,221.12 is: 19,828.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,288.32 : 51,425.28 = 13,221.12 : x
  2. Step 2: Convert to fraction form
    34,288.32/51,425.28 = 13,221.12/x
  3. Step 3: Cross multiply
    34,288.32x = 51,425.28 × 13,221.12
  4. Step 4: Simplify right side
    34,288.32x = 679,899,797.91
  5. Step 5: Solve for x
    x = 679,899,797.91/34,288.32
  6. Step 6: Final answer
    x = 19,828.90

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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.