Home / 19,986.12-27,572.13-12,023.82

Finding the Fourth Proportional to 19,986.12, 27,572.13 and 12,023.82

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Solution

The fourth proportional to 19,986.12, 27,572.13 and 12,023.82 is: 16,587.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,986.12 : 27,572.13 = 12,023.82 : x
  2. Step 2: Convert to fraction form
    19,986.12/27,572.13 = 12,023.82/x
  3. Step 3: Cross multiply
    19,986.12x = 27,572.13 × 12,023.82
  4. Step 4: Simplify right side
    19,986.12x = 331,522,328.14
  5. Step 5: Solve for x
    x = 331,522,328.14/19,986.12
  6. Step 6: Final answer
    x = 16,587.63

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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.