Home / 21,344.78-32,021.92-6,555.19

Finding the Fourth Proportional to 21,344.78, 32,021.92 and 6,555.19

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Solution

The fourth proportional to 21,344.78, 32,021.92 and 6,555.19 is: 9,834.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,344.78 : 32,021.92 = 6,555.19 : x
  2. Step 2: Convert to fraction form
    21,344.78/32,021.92 = 6,555.19/x
  3. Step 3: Cross multiply
    21,344.78x = 32,021.92 × 6,555.19
  4. Step 4: Simplify right side
    21,344.78x = 209,909,673.32
  5. Step 5: Solve for x
    x = 209,909,673.32/21,344.78
  6. Step 6: Final answer
    x = 9,834.24

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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.