Home / 21,475.09-32,215.68-6,685.51

Finding the Fourth Proportional to 21,475.09, 32,215.68 and 6,685.51

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Solution

The fourth proportional to 21,475.09, 32,215.68 and 6,685.51 is: 10,029.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,475.09 : 32,215.68 = 6,685.51 : x
  2. Step 2: Convert to fraction form
    21,475.09/32,215.68 = 6,685.51/x
  3. Step 3: Cross multiply
    21,475.09x = 32,215.68 × 6,685.51
  4. Step 4: Simplify right side
    21,475.09x = 215,378,250.80
  5. Step 5: Solve for x
    x = 215,378,250.80/21,475.09
  6. Step 6: Final answer
    x = 10,029.21

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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.