Home / 20,158.60-27,818.79-11,206.93

Finding the Fourth Proportional to 20,158.60, 27,818.79 and 11,206.93

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Solution

The fourth proportional to 20,158.60, 27,818.79 and 11,206.93 is: 15,465.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.60 : 27,818.79 = 11,206.93 : x
  2. Step 2: Convert to fraction form
    20,158.60/27,818.79 = 11,206.93/x
  3. Step 3: Cross multiply
    20,158.60x = 27,818.79 × 11,206.93
  4. Step 4: Simplify right side
    20,158.60x = 311,763,314.08
  5. Step 5: Solve for x
    x = 311,763,314.08/20,158.60
  6. Step 6: Final answer
    x = 15,465.53

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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.