Home / 21,438.04-32,160.30-7,585.96

Finding the Fourth Proportional to 21,438.04, 32,160.30 and 7,585.96

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Solution

The fourth proportional to 21,438.04, 32,160.30 and 7,585.96 is: 11,380.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438.04 : 32,160.30 = 7,585.96 : x
  2. Step 2: Convert to fraction form
    21,438.04/32,160.30 = 7,585.96/x
  3. Step 3: Cross multiply
    21,438.04x = 32,160.30 × 7,585.96
  4. Step 4: Simplify right side
    21,438.04x = 243,966,749.39
  5. Step 5: Solve for x
    x = 243,966,749.39/21,438.04
  6. Step 6: Final answer
    x = 11,380.09

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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.