Home / 25,533.92-38,315.36-13,855.20

Finding the Fourth Proportional to 25,533.92, 38,315.36 and 13,855.20

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Solution

The fourth proportional to 25,533.92, 38,315.36 and 13,855.20 is: 20,790.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,533.92 : 38,315.36 = 13,855.20 : x
  2. Step 2: Convert to fraction form
    25,533.92/38,315.36 = 13,855.20/x
  3. Step 3: Cross multiply
    25,533.92x = 38,315.36 × 13,855.20
  4. Step 4: Simplify right side
    25,533.92x = 530,866,975.87
  5. Step 5: Solve for x
    x = 530,866,975.87/25,533.92
  6. Step 6: Final answer
    x = 20,790.66

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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.