Home / 28,398.92-39,190.38-15,652.08

Finding the Fourth Proportional to 28,398.92, 39,190.38 and 15,652.08

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Solution

The fourth proportional to 28,398.92, 39,190.38 and 15,652.08 is: 21,599.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,398.92 : 39,190.38 = 15,652.08 : x
  2. Step 2: Convert to fraction form
    28,398.92/39,190.38 = 15,652.08/x
  3. Step 3: Cross multiply
    28,398.92x = 39,190.38 × 15,652.08
  4. Step 4: Simplify right side
    28,398.92x = 613,410,904.14
  5. Step 5: Solve for x
    x = 613,410,904.14/28,398.92
  6. Step 6: Final answer
    x = 21,599.80

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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.