Home / 21,402.82-32,104.14-5,820.40

Finding the Fourth Proportional to 21,402.82, 32,104.14 and 5,820.40

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Solution

The fourth proportional to 21,402.82, 32,104.14 and 5,820.40 is: 8,730.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,402.82 : 32,104.14 = 5,820.40 : x
  2. Step 2: Convert to fraction form
    21,402.82/32,104.14 = 5,820.40/x
  3. Step 3: Cross multiply
    21,402.82x = 32,104.14 × 5,820.40
  4. Step 4: Simplify right side
    21,402.82x = 186,858,936.46
  5. Step 5: Solve for x
    x = 186,858,936.46/21,402.82
  6. Step 6: Final answer
    x = 8,730.58

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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.