Home / 34,345.62-47,396.94-20,916.87

Finding the Fourth Proportional to 34,345.62, 47,396.94 and 20,916.87

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Solution

The fourth proportional to 34,345.62, 47,396.94 and 20,916.87 is: 28,865.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,345.62 : 47,396.94 = 20,916.87 : x
  2. Step 2: Convert to fraction form
    34,345.62/47,396.94 = 20,916.87/x
  3. Step 3: Cross multiply
    34,345.62x = 47,396.94 × 20,916.87
  4. Step 4: Simplify right side
    34,345.62x = 991,395,632.38
  5. Step 5: Solve for x
    x = 991,395,632.38/34,345.62
  6. Step 6: Final answer
    x = 28,865.27

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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.