Home / 20,069.02-27,695.45-12,109.72

Finding the Fourth Proportional to 20,069.02, 27,695.45 and 12,109.72

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Solution

The fourth proportional to 20,069.02, 27,695.45 and 12,109.72 is: 16,711.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,069.02 : 27,695.45 = 12,109.72 : x
  2. Step 2: Convert to fraction form
    20,069.02/27,695.45 = 12,109.72/x
  3. Step 3: Cross multiply
    20,069.02x = 27,695.45 × 12,109.72
  4. Step 4: Simplify right side
    20,069.02x = 335,384,144.77
  5. Step 5: Solve for x
    x = 335,384,144.77/20,069.02
  6. Step 6: Final answer
    x = 16,711.54

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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.