Home / 20,187.24-27,854.20-12,230.16

Finding the Fourth Proportional to 20,187.24, 27,854.20 and 12,230.16

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Solution

The fourth proportional to 20,187.24, 27,854.20 and 12,230.16 is: 16,875.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.24 : 27,854.20 = 12,230.16 : x
  2. Step 2: Convert to fraction form
    20,187.24/27,854.20 = 12,230.16/x
  3. Step 3: Cross multiply
    20,187.24x = 27,854.20 × 12,230.16
  4. Step 4: Simplify right side
    20,187.24x = 340,661,322.67
  5. Step 5: Solve for x
    x = 340,661,322.67/20,187.24
  6. Step 6: Final answer
    x = 16,875.08

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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.