Home / 21,479.35-32,199.58-7,625.11

Finding the Fourth Proportional to 21,479.35, 32,199.58 and 7,625.11

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Solution

The fourth proportional to 21,479.35, 32,199.58 and 7,625.11 is: 11,430.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,479.35 : 32,199.58 = 7,625.11 : x
  2. Step 2: Convert to fraction form
    21,479.35/32,199.58 = 7,625.11/x
  3. Step 3: Cross multiply
    21,479.35x = 32,199.58 × 7,625.11
  4. Step 4: Simplify right side
    21,479.35x = 245,525,140.33
  5. Step 5: Solve for x
    x = 245,525,140.33/21,479.35
  6. Step 6: Final answer
    x = 11,430.76

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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.