Home / 21,362.40-32,043.44-5,780

Finding the Fourth Proportional to 21,362.40, 32,043.44 and 5,780

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Solution

The fourth proportional to 21,362.40, 32,043.44 and 5,780 is: 8,669.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,362.40 : 32,043.44 = 5,780 : x
  2. Step 2: Convert to fraction form
    21,362.40/32,043.44 = 5,780/x
  3. Step 3: Cross multiply
    21,362.40x = 32,043.44 × 5,780
  4. Step 4: Simplify right side
    21,362.40x = 185,211,083.20
  5. Step 5: Solve for x
    x = 185,211,083.20/21,362.40
  6. Step 6: Final answer
    x = 8,669.96

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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.