Home / 25,155.72-34,717.62-15,727.32

Finding the Fourth Proportional to 25,155.72, 34,717.62 and 15,727.32

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Solution

The fourth proportional to 25,155.72, 34,717.62 and 15,727.32 is: 21,705.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,155.72 : 34,717.62 = 15,727.32 : x
  2. Step 2: Convert to fraction form
    25,155.72/34,717.62 = 15,727.32/x
  3. Step 3: Cross multiply
    25,155.72x = 34,717.62 × 15,727.32
  4. Step 4: Simplify right side
    25,155.72x = 546,015,119.38
  5. Step 5: Solve for x
    x = 546,015,119.38/25,155.72
  6. Step 6: Final answer
    x = 21,705.41

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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.