Home / 26,406.78-39,533.58-20,545.62

Finding the Fourth Proportional to 26,406.78, 39,533.58 and 20,545.62

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Solution

The fourth proportional to 26,406.78, 39,533.58 and 20,545.62 is: 30,758.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,406.78 : 39,533.58 = 20,545.62 : x
  2. Step 2: Convert to fraction form
    26,406.78/39,533.58 = 20,545.62/x
  3. Step 3: Cross multiply
    26,406.78x = 39,533.58 × 20,545.62
  4. Step 4: Simplify right side
    26,406.78x = 812,241,911.92
  5. Step 5: Solve for x
    x = 812,241,911.92/26,406.78
  6. Step 6: Final answer
    x = 30,758.84

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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.