Home / 21,928.75-32,897.18-6,939.64

Finding the Fourth Proportional to 21,928.75, 32,897.18 and 6,939.64

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Solution

The fourth proportional to 21,928.75, 32,897.18 and 6,939.64 is: 10,410.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928.75 : 32,897.18 = 6,939.64 : x
  2. Step 2: Convert to fraction form
    21,928.75/32,897.18 = 6,939.64/x
  3. Step 3: Cross multiply
    21,928.75x = 32,897.18 × 6,939.64
  4. Step 4: Simplify right side
    21,928.75x = 228,294,531.11
  5. Step 5: Solve for x
    x = 228,294,531.11/21,928.75
  6. Step 6: Final answer
    x = 10,410.74

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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.