Home / 21,606.13-32,409.20-5,190.13

Finding the Fourth Proportional to 21,606.13, 32,409.20 and 5,190.13

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Solution

The fourth proportional to 21,606.13, 32,409.20 and 5,190.13 is: 7,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,606.13 : 32,409.20 = 5,190.13 : x
  2. Step 2: Convert to fraction form
    21,606.13/32,409.20 = 5,190.13/x
  3. Step 3: Cross multiply
    21,606.13x = 32,409.20 × 5,190.13
  4. Step 4: Simplify right side
    21,606.13x = 168,207,961.20
  5. Step 5: Solve for x
    x = 168,207,961.20/21,606.13
  6. Step 6: Final answer
    x = 7,785.20

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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.