Home / 21,435.19-32,161.22-6,645.25

Finding the Fourth Proportional to 21,435.19, 32,161.22 and 6,645.25

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Solution

The fourth proportional to 21,435.19, 32,161.22 and 6,645.25 is: 9,970.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,435.19 : 32,161.22 = 6,645.25 : x
  2. Step 2: Convert to fraction form
    21,435.19/32,161.22 = 6,645.25/x
  3. Step 3: Cross multiply
    21,435.19x = 32,161.22 × 6,645.25
  4. Step 4: Simplify right side
    21,435.19x = 213,719,347.21
  5. Step 5: Solve for x
    x = 213,719,347.21/21,435.19
  6. Step 6: Final answer
    x = 9,970.49

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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.