Home / 27,842.64-38,436.84-18,156.48

Finding the Fourth Proportional to 27,842.64, 38,436.84 and 18,156.48

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Solution

The fourth proportional to 27,842.64, 38,436.84 and 18,156.48 is: 25,065.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,842.64 : 38,436.84 = 18,156.48 : x
  2. Step 2: Convert to fraction form
    27,842.64/38,436.84 = 18,156.48/x
  3. Step 3: Cross multiply
    27,842.64x = 38,436.84 × 18,156.48
  4. Step 4: Simplify right side
    27,842.64x = 697,877,716.72
  5. Step 5: Solve for x
    x = 697,877,716.72/27,842.64
  6. Step 6: Final answer
    x = 25,065.07

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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.