Home / 19,619.98-29,429.90-5,388.46

Finding the Fourth Proportional to 19,619.98, 29,429.90 and 5,388.46

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Solution

The fourth proportional to 19,619.98, 29,429.90 and 5,388.46 is: 8,082.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,619.98 : 29,429.90 = 5,388.46 : x
  2. Step 2: Convert to fraction form
    19,619.98/29,429.90 = 5,388.46/x
  3. Step 3: Cross multiply
    19,619.98x = 29,429.90 × 5,388.46
  4. Step 4: Simplify right side
    19,619.98x = 158,581,956.47
  5. Step 5: Solve for x
    x = 158,581,956.47/19,619.98
  6. Step 6: Final answer
    x = 8,082.68

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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.