Home / 21,553.60-32,330.40-9,858.64

Finding the Fourth Proportional to 21,553.60, 32,330.40 and 9,858.64

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Solution

The fourth proportional to 21,553.60, 32,330.40 and 9,858.64 is: 14,787.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,553.60 : 32,330.40 = 9,858.64 : x
  2. Step 2: Convert to fraction form
    21,553.60/32,330.40 = 9,858.64/x
  3. Step 3: Cross multiply
    21,553.60x = 32,330.40 × 9,858.64
  4. Step 4: Simplify right side
    21,553.60x = 318,733,774.66
  5. Step 5: Solve for x
    x = 318,733,774.66/21,553.60
  6. Step 6: Final answer
    x = 14,787.96

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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.