Home / 20,158.61-27,819.52-11,206.49

Finding the Fourth Proportional to 20,158.61, 27,819.52 and 11,206.49

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Solution

The fourth proportional to 20,158.61, 27,819.52 and 11,206.49 is: 15,465.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.61 : 27,819.52 = 11,206.49 : x
  2. Step 2: Convert to fraction form
    20,158.61/27,819.52 = 11,206.49/x
  3. Step 3: Cross multiply
    20,158.61x = 27,819.52 × 11,206.49
  4. Step 4: Simplify right side
    20,158.61x = 311,759,005.57
  5. Step 5: Solve for x
    x = 311,759,005.57/20,158.61
  6. Step 6: Final answer
    x = 15,465.31

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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.