Home / 19,581.21-29,380.28-7,103.01

Finding the Fourth Proportional to 19,581.21, 29,380.28 and 7,103.01

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Solution

The fourth proportional to 19,581.21, 29,380.28 and 7,103.01 is: 10,657.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,581.21 : 29,380.28 = 7,103.01 : x
  2. Step 2: Convert to fraction form
    19,581.21/29,380.28 = 7,103.01/x
  3. Step 3: Cross multiply
    19,581.21x = 29,380.28 × 7,103.01
  4. Step 4: Simplify right side
    19,581.21x = 208,688,422.64
  5. Step 5: Solve for x
    x = 208,688,422.64/19,581.21
  6. Step 6: Final answer
    x = 10,657.59

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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.