Home / 21,826.86-32,712.90-9,332.20

Finding the Fourth Proportional to 21,826.86, 32,712.90 and 9,332.20

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Solution

The fourth proportional to 21,826.86, 32,712.90 and 9,332.20 is: 13,986.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,826.86 : 32,712.90 = 9,332.20 : x
  2. Step 2: Convert to fraction form
    21,826.86/32,712.90 = 9,332.20/x
  3. Step 3: Cross multiply
    21,826.86x = 32,712.90 × 9,332.20
  4. Step 4: Simplify right side
    21,826.86x = 305,283,325.38
  5. Step 5: Solve for x
    x = 305,283,325.38/21,826.86
  6. Step 6: Final answer
    x = 13,986.59

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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.