Home / 21,770.08-32,657.40-9,291.43

Finding the Fourth Proportional to 21,770.08, 32,657.40 and 9,291.43

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Solution

The fourth proportional to 21,770.08, 32,657.40 and 9,291.43 is: 13,938.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,770.08 : 32,657.40 = 9,291.43 : x
  2. Step 2: Convert to fraction form
    21,770.08/32,657.40 = 9,291.43/x
  3. Step 3: Cross multiply
    21,770.08x = 32,657.40 × 9,291.43
  4. Step 4: Simplify right side
    21,770.08x = 303,433,946.08
  5. Step 5: Solve for x
    x = 303,433,946.08/21,770.08
  6. Step 6: Final answer
    x = 13,938.12

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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.