Home / 20,158.29-27,818.91-11,206.58

Finding the Fourth Proportional to 20,158.29, 27,818.91 and 11,206.58

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Solution

The fourth proportional to 20,158.29, 27,818.91 and 11,206.58 is: 15,465.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.29 : 27,818.91 = 11,206.58 : x
  2. Step 2: Convert to fraction form
    20,158.29/27,818.91 = 11,206.58/x
  3. Step 3: Cross multiply
    20,158.29x = 27,818.91 × 11,206.58
  4. Step 4: Simplify right side
    20,158.29x = 311,754,701.33
  5. Step 5: Solve for x
    x = 311,754,701.33/20,158.29
  6. Step 6: Final answer
    x = 15,465.33

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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.