Home / 23,765.40-32,858.87-20,812.95

Finding the Fourth Proportional to 23,765.40, 32,858.87 and 20,812.95

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Solution

The fourth proportional to 23,765.40, 32,858.87 and 20,812.95 is: 28,776.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,765.40 : 32,858.87 = 20,812.95 : x
  2. Step 2: Convert to fraction form
    23,765.40/32,858.87 = 20,812.95/x
  3. Step 3: Cross multiply
    23,765.40x = 32,858.87 × 20,812.95
  4. Step 4: Simplify right side
    23,765.40x = 683,889,914.30
  5. Step 5: Solve for x
    x = 683,889,914.30/23,765.40
  6. Step 6: Final answer
    x = 28,776.71

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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.