Home / 21,661.12-32,483.23-6,663.77

Finding the Fourth Proportional to 21,661.12, 32,483.23 and 6,663.77

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Solution

The fourth proportional to 21,661.12, 32,483.23 and 6,663.77 is: 9,993.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,661.12 : 32,483.23 = 6,663.77 : x
  2. Step 2: Convert to fraction form
    21,661.12/32,483.23 = 6,663.77/x
  3. Step 3: Cross multiply
    21,661.12x = 32,483.23 × 6,663.77
  4. Step 4: Simplify right side
    21,661.12x = 216,460,716.31
  5. Step 5: Solve for x
    x = 216,460,716.31/21,661.12
  6. Step 6: Final answer
    x = 9,993.05

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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.