Home / 39,477.34-54,476.43-21,572.49

Finding the Fourth Proportional to 39,477.34, 54,476.43 and 21,572.49

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Solution

The fourth proportional to 39,477.34, 54,476.43 and 21,572.49 is: 29,768.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,477.34 : 54,476.43 = 21,572.49 : x
  2. Step 2: Convert to fraction form
    39,477.34/54,476.43 = 21,572.49/x
  3. Step 3: Cross multiply
    39,477.34x = 54,476.43 × 21,572.49
  4. Step 4: Simplify right side
    39,477.34x = 1,175,192,458.50
  5. Step 5: Solve for x
    x = 1,175,192,458.50/39,477.34
  6. Step 6: Final answer
    x = 29,768.79

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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.