Home / 21,322.60-32,022.30-15,485.80

Finding the Fourth Proportional to 21,322.60, 32,022.30 and 15,485.80

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Solution

The fourth proportional to 21,322.60, 32,022.30 and 15,485.80 is: 23,256.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,322.60 : 32,022.30 = 15,485.80 : x
  2. Step 2: Convert to fraction form
    21,322.60/32,022.30 = 15,485.80/x
  3. Step 3: Cross multiply
    21,322.60x = 32,022.30 × 15,485.80
  4. Step 4: Simplify right side
    21,322.60x = 495,890,933.34
  5. Step 5: Solve for x
    x = 495,890,933.34/21,322.60
  6. Step 6: Final answer
    x = 23,256.59

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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.