Home / 27,956.20-38,580.42-15,210.32

Finding the Fourth Proportional to 27,956.20, 38,580.42 and 15,210.32

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Solution

The fourth proportional to 27,956.20, 38,580.42 and 15,210.32 is: 20,990.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,956.20 : 38,580.42 = 15,210.32 : x
  2. Step 2: Convert to fraction form
    27,956.20/38,580.42 = 15,210.32/x
  3. Step 3: Cross multiply
    27,956.20x = 38,580.42 × 15,210.32
  4. Step 4: Simplify right side
    27,956.20x = 586,820,533.93
  5. Step 5: Solve for x
    x = 586,820,533.93/27,956.20
  6. Step 6: Final answer
    x = 20,990.71

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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.