Home / 21,505.05-32,259.60-8,358.45

Finding the Fourth Proportional to 21,505.05, 32,259.60 and 8,358.45

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Solution

The fourth proportional to 21,505.05, 32,259.60 and 8,358.45 is: 12,538.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,505.05 : 32,259.60 = 8,358.45 : x
  2. Step 2: Convert to fraction form
    21,505.05/32,259.60 = 8,358.45/x
  3. Step 3: Cross multiply
    21,505.05x = 32,259.60 × 8,358.45
  4. Step 4: Simplify right side
    21,505.05x = 269,640,253.62
  5. Step 5: Solve for x
    x = 269,640,253.62/21,505.05
  6. Step 6: Final answer
    x = 12,538.46

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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.