Home / 21,245.60-31,876.96-9,564.32

Finding the Fourth Proportional to 21,245.60, 31,876.96 and 9,564.32

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Solution

The fourth proportional to 21,245.60, 31,876.96 and 9,564.32 is: 14,350.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,245.60 : 31,876.96 = 9,564.32 : x
  2. Step 2: Convert to fraction form
    21,245.60/31,876.96 = 9,564.32/x
  3. Step 3: Cross multiply
    21,245.60x = 31,876.96 × 9,564.32
  4. Step 4: Simplify right side
    21,245.60x = 304,881,446.07
  5. Step 5: Solve for x
    x = 304,881,446.07/21,245.60
  6. Step 6: Final answer
    x = 14,350.33

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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.