Home / 21,378.06-32,073.57-15,150.12

Finding the Fourth Proportional to 21,378.06, 32,073.57 and 15,150.12

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Solution

The fourth proportional to 21,378.06, 32,073.57 and 15,150.12 is: 22,729.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,378.06 : 32,073.57 = 15,150.12 : x
  2. Step 2: Convert to fraction form
    21,378.06/32,073.57 = 15,150.12/x
  3. Step 3: Cross multiply
    21,378.06x = 32,073.57 × 15,150.12
  4. Step 4: Simplify right side
    21,378.06x = 485,918,434.33
  5. Step 5: Solve for x
    x = 485,918,434.33/21,378.06
  6. Step 6: Final answer
    x = 22,729.77

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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.