Home / 25,355.15-38,021.18-13,505.92

Finding the Fourth Proportional to 25,355.15, 38,021.18 and 13,505.92

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Solution

The fourth proportional to 25,355.15, 38,021.18 and 13,505.92 is: 20,252.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,355.15 : 38,021.18 = 13,505.92 : x
  2. Step 2: Convert to fraction form
    25,355.15/38,021.18 = 13,505.92/x
  3. Step 3: Cross multiply
    25,355.15x = 38,021.18 × 13,505.92
  4. Step 4: Simplify right side
    25,355.15x = 513,510,852.80
  5. Step 5: Solve for x
    x = 513,510,852.80/25,355.15
  6. Step 6: Final answer
    x = 20,252.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.