Home / 21,402.40-32,103.66-5,820.02

Finding the Fourth Proportional to 21,402.40, 32,103.66 and 5,820.02

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Solution

The fourth proportional to 21,402.40, 32,103.66 and 5,820.02 is: 8,730.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,402.40 : 32,103.66 = 5,820.02 : x
  2. Step 2: Convert to fraction form
    21,402.40/32,103.66 = 5,820.02/x
  3. Step 3: Cross multiply
    21,402.40x = 32,103.66 × 5,820.02
  4. Step 4: Simplify right side
    21,402.40x = 186,843,943.27
  5. Step 5: Solve for x
    x = 186,843,943.27/21,402.40
  6. Step 6: Final answer
    x = 8,730.05

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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.