Home / 39,475.32-54,476.65-21,571.08

Finding the Fourth Proportional to 39,475.32, 54,476.65 and 21,571.08

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Solution

The fourth proportional to 39,475.32, 54,476.65 and 21,571.08 is: 29,768.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,475.32 : 54,476.65 = 21,571.08 : x
  2. Step 2: Convert to fraction form
    39,475.32/54,476.65 = 21,571.08/x
  3. Step 3: Cross multiply
    39,475.32x = 54,476.65 × 21,571.08
  4. Step 4: Simplify right side
    39,475.32x = 1,175,120,175.28
  5. Step 5: Solve for x
    x = 1,175,120,175.28/39,475.32
  6. Step 6: Final answer
    x = 29,768.48

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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.