Home / 20,182.74-27,852.27-12,219.30

Finding the Fourth Proportional to 20,182.74, 27,852.27 and 12,219.30

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Solution

The fourth proportional to 20,182.74, 27,852.27 and 12,219.30 is: 16,862.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182.74 : 27,852.27 = 12,219.30 : x
  2. Step 2: Convert to fraction form
    20,182.74/27,852.27 = 12,219.30/x
  3. Step 3: Cross multiply
    20,182.74x = 27,852.27 × 12,219.30
  4. Step 4: Simplify right side
    20,182.74x = 340,335,242.81
  5. Step 5: Solve for x
    x = 340,335,242.81/20,182.74
  6. Step 6: Final answer
    x = 16,862.69

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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.