Home / 39,438.68-54,332.88-27,480.32

Finding the Fourth Proportional to 39,438.68, 54,332.88 and 27,480.32

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Solution

The fourth proportional to 39,438.68, 54,332.88 and 27,480.32 is: 37,858.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,438.68 : 54,332.88 = 27,480.32 : x
  2. Step 2: Convert to fraction form
    39,438.68/54,332.88 = 27,480.32/x
  3. Step 3: Cross multiply
    39,438.68x = 54,332.88 × 27,480.32
  4. Step 4: Simplify right side
    39,438.68x = 1,493,084,928.92
  5. Step 5: Solve for x
    x = 1,493,084,928.92/39,438.68
  6. Step 6: Final answer
    x = 37,858.39

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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.