Home / 39,477.32-54,478.04-21,571.94

Finding the Fourth Proportional to 39,477.32, 54,478.04 and 21,571.94

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Solution

The fourth proportional to 39,477.32, 54,478.04 and 21,571.94 is: 29,768.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,477.32 : 54,478.04 = 21,571.94 : x
  2. Step 2: Convert to fraction form
    39,477.32/54,478.04 = 21,571.94/x
  3. Step 3: Cross multiply
    39,477.32x = 54,478.04 × 21,571.94
  4. Step 4: Simplify right side
    39,477.32x = 1,175,197,010.20
  5. Step 5: Solve for x
    x = 1,175,197,010.20/39,477.32
  6. Step 6: Final answer
    x = 29,768.92

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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.