Home / 20,316.62-28,037.01-11,363.55

Finding the Fourth Proportional to 20,316.62, 28,037.01 and 11,363.55

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Solution

The fourth proportional to 20,316.62, 28,037.01 and 11,363.55 is: 15,681.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.62 : 28,037.01 = 11,363.55 : x
  2. Step 2: Convert to fraction form
    20,316.62/28,037.01 = 11,363.55/x
  3. Step 3: Cross multiply
    20,316.62x = 28,037.01 × 11,363.55
  4. Step 4: Simplify right side
    20,316.62x = 318,599,964.99
  5. Step 5: Solve for x
    x = 318,599,964.99/20,316.62
  6. Step 6: Final answer
    x = 15,681.74

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Double scale
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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.