Home / 17,620.48-24,309.12-12,021.76

Finding the Fourth Proportional to 17,620.48, 24,309.12 and 12,021.76

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Solution

The fourth proportional to 17,620.48, 24,309.12 and 12,021.76 is: 16,585.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,620.48 : 24,309.12 = 12,021.76 : x
  2. Step 2: Convert to fraction form
    17,620.48/24,309.12 = 12,021.76/x
  3. Step 3: Cross multiply
    17,620.48x = 24,309.12 × 12,021.76
  4. Step 4: Simplify right side
    17,620.48x = 292,238,406.45
  5. Step 5: Solve for x
    x = 292,238,406.45/17,620.48
  6. Step 6: Final answer
    x = 16,585.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.