Home / 21,355.56-32,020.08-8,884.32

Finding the Fourth Proportional to 21,355.56, 32,020.08 and 8,884.32

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Solution

The fourth proportional to 21,355.56, 32,020.08 and 8,884.32 is: 13,320.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,355.56 : 32,020.08 = 8,884.32 : x
  2. Step 2: Convert to fraction form
    21,355.56/32,020.08 = 8,884.32/x
  3. Step 3: Cross multiply
    21,355.56x = 32,020.08 × 8,884.32
  4. Step 4: Simplify right side
    21,355.56x = 284,476,637.15
  5. Step 5: Solve for x
    x = 284,476,637.15/21,355.56
  6. Step 6: Final answer
    x = 13,320.96

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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.