Home / 39,412.99-54,391.56-22,420.23

Finding the Fourth Proportional to 39,412.99, 54,391.56 and 22,420.23

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Solution

The fourth proportional to 39,412.99, 54,391.56 and 22,420.23 is: 30,940.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,412.99 : 54,391.56 = 22,420.23 : x
  2. Step 2: Convert to fraction form
    39,412.99/54,391.56 = 22,420.23/x
  3. Step 3: Cross multiply
    39,412.99x = 54,391.56 × 22,420.23
  4. Step 4: Simplify right side
    39,412.99x = 1,219,471,384.32
  5. Step 5: Solve for x
    x = 1,219,471,384.32/39,412.99
  6. Step 6: Final answer
    x = 30,940.85

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Double scale
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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.