Home / 19,319.28-26,665.50-10,940.64

Finding the Fourth Proportional to 19,319.28, 26,665.50 and 10,940.64

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Solution

The fourth proportional to 19,319.28, 26,665.50 and 10,940.64 is: 15,100.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.28 : 26,665.50 = 10,940.64 : x
  2. Step 2: Convert to fraction form
    19,319.28/26,665.50 = 10,940.64/x
  3. Step 3: Cross multiply
    19,319.28x = 26,665.50 × 10,940.64
  4. Step 4: Simplify right side
    19,319.28x = 291,737,635.92
  5. Step 5: Solve for x
    x = 291,737,635.92/19,319.28
  6. Step 6: Final answer
    x = 15,100.85

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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.