Home / 27,819.68-38,391.11-15,073.19

Finding the Fourth Proportional to 27,819.68, 38,391.11 and 15,073.19

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Solution

The fourth proportional to 27,819.68, 38,391.11 and 15,073.19 is: 20,800.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,819.68 : 38,391.11 = 15,073.19 : x
  2. Step 2: Convert to fraction form
    27,819.68/38,391.11 = 15,073.19/x
  3. Step 3: Cross multiply
    27,819.68x = 38,391.11 × 15,073.19
  4. Step 4: Simplify right side
    27,819.68x = 578,676,428.51
  5. Step 5: Solve for x
    x = 578,676,428.51/27,819.68
  6. Step 6: Final answer
    x = 20,800.98

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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.