Home / 20,316.29-28,037.07-11,363.58

Finding the Fourth Proportional to 20,316.29, 28,037.07 and 11,363.58

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Solution

The fourth proportional to 20,316.29, 28,037.07 and 11,363.58 is: 15,682.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.29 : 28,037.07 = 11,363.58 : x
  2. Step 2: Convert to fraction form
    20,316.29/28,037.07 = 11,363.58/x
  3. Step 3: Cross multiply
    20,316.29x = 28,037.07 × 11,363.58
  4. Step 4: Simplify right side
    20,316.29x = 318,601,487.91
  5. Step 5: Solve for x
    x = 318,601,487.91/20,316.29
  6. Step 6: Final answer
    x = 15,682.07

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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.