Home / 39,378.08-54,340.57-21,473.44

Finding the Fourth Proportional to 39,378.08, 54,340.57 and 21,473.44

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Solution

The fourth proportional to 39,378.08, 54,340.57 and 21,473.44 is: 29,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,378.08 : 54,340.57 = 21,473.44 : x
  2. Step 2: Convert to fraction form
    39,378.08/54,340.57 = 21,473.44/x
  3. Step 3: Cross multiply
    39,378.08x = 54,340.57 × 21,473.44
  4. Step 4: Simplify right side
    39,378.08x = 1,166,878,860.45
  5. Step 5: Solve for x
    x = 1,166,878,860.45/39,378.08
  6. Step 6: Final answer
    x = 29,632.70

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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.