Home / 19,656.27-27,123.66-12,101.40

Finding the Fourth Proportional to 19,656.27, 27,123.66 and 12,101.40

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Solution

The fourth proportional to 19,656.27, 27,123.66 and 12,101.40 is: 16,698.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,656.27 : 27,123.66 = 12,101.40 : x
  2. Step 2: Convert to fraction form
    19,656.27/27,123.66 = 12,101.40/x
  3. Step 3: Cross multiply
    19,656.27x = 27,123.66 × 12,101.40
  4. Step 4: Simplify right side
    19,656.27x = 328,234,259.12
  5. Step 5: Solve for x
    x = 328,234,259.12/19,656.27
  6. Step 6: Final answer
    x = 16,698.71

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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.