Home / 28,204.68-38,922.12-15,629.16

Finding the Fourth Proportional to 28,204.68, 38,922.12 and 15,629.16

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Solution

The fourth proportional to 28,204.68, 38,922.12 and 15,629.16 is: 21,568.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,204.68 : 38,922.12 = 15,629.16 : x
  2. Step 2: Convert to fraction form
    28,204.68/38,922.12 = 15,629.16/x
  3. Step 3: Cross multiply
    28,204.68x = 38,922.12 × 15,629.16
  4. Step 4: Simplify right side
    28,204.68x = 608,320,041.02
  5. Step 5: Solve for x
    x = 608,320,041.02/28,204.68
  6. Step 6: Final answer
    x = 21,568.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.