Home / 21,289.24-31,936.18-8,152.76

Finding the Fourth Proportional to 21,289.24, 31,936.18 and 8,152.76

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Solution

The fourth proportional to 21,289.24, 31,936.18 and 8,152.76 is: 12,230.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289.24 : 31,936.18 = 8,152.76 : x
  2. Step 2: Convert to fraction form
    21,289.24/31,936.18 = 8,152.76/x
  3. Step 3: Cross multiply
    21,289.24x = 31,936.18 × 8,152.76
  4. Step 4: Simplify right side
    21,289.24x = 260,368,010.86
  5. Step 5: Solve for x
    x = 260,368,010.86/21,289.24
  6. Step 6: Final answer
    x = 12,230.03

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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.