Home / 27,880.99-38,474.72-15,944.02

Finding the Fourth Proportional to 27,880.99, 38,474.72 and 15,944.02

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Solution

The fourth proportional to 27,880.99, 38,474.72 and 15,944.02 is: 22,002.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,880.99 : 38,474.72 = 15,944.02 : x
  2. Step 2: Convert to fraction form
    27,880.99/38,474.72 = 15,944.02/x
  3. Step 3: Cross multiply
    27,880.99x = 38,474.72 × 15,944.02
  4. Step 4: Simplify right side
    27,880.99x = 613,441,705.17
  5. Step 5: Solve for x
    x = 613,441,705.17/27,880.99
  6. Step 6: Final answer
    x = 22,002.15

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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.