Home / 27,763.92-38,315.11-15,188.67

Finding the Fourth Proportional to 27,763.92, 38,315.11 and 15,188.67

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Solution

The fourth proportional to 27,763.92, 38,315.11 and 15,188.67 is: 20,960.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,763.92 : 38,315.11 = 15,188.67 : x
  2. Step 2: Convert to fraction form
    27,763.92/38,315.11 = 15,188.67/x
  3. Step 3: Cross multiply
    27,763.92x = 38,315.11 × 15,188.67
  4. Step 4: Simplify right side
    27,763.92x = 581,955,294.28
  5. Step 5: Solve for x
    x = 581,955,294.28/27,763.92
  6. Step 6: Final answer
    x = 20,960.85

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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.