Home / 21,715.90-32,544.38-9,220.23

Finding the Fourth Proportional to 21,715.90, 32,544.38 and 9,220.23

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Solution

The fourth proportional to 21,715.90, 32,544.38 and 9,220.23 is: 13,817.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,715.90 : 32,544.38 = 9,220.23 : x
  2. Step 2: Convert to fraction form
    21,715.90/32,544.38 = 9,220.23/x
  3. Step 3: Cross multiply
    21,715.90x = 32,544.38 × 9,220.23
  4. Step 4: Simplify right side
    21,715.90x = 300,066,691.86
  5. Step 5: Solve for x
    x = 300,066,691.86/21,715.90
  6. Step 6: Final answer
    x = 13,817.84

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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.