Home / 39,436.58-54,423.88-21,533.16

Finding the Fourth Proportional to 39,436.58, 54,423.88 and 21,533.16

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Solution

The fourth proportional to 39,436.58, 54,423.88 and 21,533.16 is: 29,716.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,436.58 : 54,423.88 = 21,533.16 : x
  2. Step 2: Convert to fraction form
    39,436.58/54,423.88 = 21,533.16/x
  3. Step 3: Cross multiply
    39,436.58x = 54,423.88 × 21,533.16
  4. Step 4: Simplify right side
    39,436.58x = 1,171,918,115.86
  5. Step 5: Solve for x
    x = 1,171,918,115.86/39,436.58
  6. Step 6: Final answer
    x = 29,716.53

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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.