Home / 27,819.79-38,391.32-15,073.06

Finding the Fourth Proportional to 27,819.79, 38,391.32 and 15,073.06

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Solution

The fourth proportional to 27,819.79, 38,391.32 and 15,073.06 is: 20,800.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,819.79 : 38,391.32 = 15,073.06 : x
  2. Step 2: Convert to fraction form
    27,819.79/38,391.32 = 15,073.06/x
  3. Step 3: Cross multiply
    27,819.79x = 38,391.32 × 15,073.06
  4. Step 4: Simplify right side
    27,819.79x = 578,674,669.84
  5. Step 5: Solve for x
    x = 578,674,669.84/27,819.79
  6. Step 6: Final answer
    x = 20,800.83

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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.