Home / 20,795.60-31,205.69-10,935.64

Finding the Fourth Proportional to 20,795.60, 31,205.69 and 10,935.64

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Solution

The fourth proportional to 20,795.60, 31,205.69 and 10,935.64 is: 16,409.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,795.60 : 31,205.69 = 10,935.64 : x
  2. Step 2: Convert to fraction form
    20,795.60/31,205.69 = 10,935.64/x
  3. Step 3: Cross multiply
    20,795.60x = 31,205.69 × 10,935.64
  4. Step 4: Simplify right side
    20,795.60x = 341,254,217.13
  5. Step 5: Solve for x
    x = 341,254,217.13/20,795.60
  6. Step 6: Final answer
    x = 16,409.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.