Home / 39,436.83-54,423.86-21,533.49

Finding the Fourth Proportional to 39,436.83, 54,423.86 and 21,533.49

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Solution

The fourth proportional to 39,436.83, 54,423.86 and 21,533.49 is: 29,716.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,436.83 : 54,423.86 = 21,533.49 : x
  2. Step 2: Convert to fraction form
    39,436.83/54,423.86 = 21,533.49/x
  3. Step 3: Cross multiply
    39,436.83x = 54,423.86 × 21,533.49
  4. Step 4: Simplify right side
    39,436.83x = 1,171,935,537.40
  5. Step 5: Solve for x
    x = 1,171,935,537.40/39,436.83
  6. Step 6: Final answer
    x = 29,716.78

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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.