Home / 21,933.40-32,900.10-20,464.60

Finding the Fourth Proportional to 21,933.40, 32,900.10 and 20,464.60

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Solution

The fourth proportional to 21,933.40, 32,900.10 and 20,464.60 is: 30,696.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,933.40 : 32,900.10 = 20,464.60 : x
  2. Step 2: Convert to fraction form
    21,933.40/32,900.10 = 20,464.60/x
  3. Step 3: Cross multiply
    21,933.40x = 32,900.10 × 20,464.60
  4. Step 4: Simplify right side
    21,933.40x = 673,287,386.46
  5. Step 5: Solve for x
    x = 673,287,386.46/21,933.40
  6. Step 6: Final answer
    x = 30,696.90

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1.5x scale

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.