Home / 18,707.76-25,847.70-14,758.92

Finding the Fourth Proportional to 18,707.76, 25,847.70 and 14,758.92

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Solution

The fourth proportional to 18,707.76, 25,847.70 and 14,758.92 is: 20,391.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.76 : 25,847.70 = 14,758.92 : x
  2. Step 2: Convert to fraction form
    18,707.76/25,847.70 = 14,758.92/x
  3. Step 3: Cross multiply
    18,707.76x = 25,847.70 × 14,758.92
  4. Step 4: Simplify right side
    18,707.76x = 381,484,136.48
  5. Step 5: Solve for x
    x = 381,484,136.48/18,707.76
  6. Step 6: Final answer
    x = 20,391.76

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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.