Home / 19,581.40-29,372.16-6,434.80

Finding the Fourth Proportional to 19,581.40, 29,372.16 and 6,434.80

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Solution

The fourth proportional to 19,581.40, 29,372.16 and 6,434.80 is: 9,652.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,581.40 : 29,372.16 = 6,434.80 : x
  2. Step 2: Convert to fraction form
    19,581.40/29,372.16 = 6,434.80/x
  3. Step 3: Cross multiply
    19,581.40x = 29,372.16 × 6,434.80
  4. Step 4: Simplify right side
    19,581.40x = 189,003,975.17
  5. Step 5: Solve for x
    x = 189,003,975.17/19,581.40
  6. Step 6: Final answer
    x = 9,652.22

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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.