Home / 39,172.51-54,058.07-21,267.49

Finding the Fourth Proportional to 39,172.51, 54,058.07 and 21,267.49

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Solution

The fourth proportional to 39,172.51, 54,058.07 and 21,267.49 is: 29,349.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,172.51 : 54,058.07 = 21,267.49 : x
  2. Step 2: Convert to fraction form
    39,172.51/54,058.07 = 21,267.49/x
  3. Step 3: Cross multiply
    39,172.51x = 54,058.07 × 21,267.49
  4. Step 4: Simplify right side
    39,172.51x = 1,149,679,463.14
  5. Step 5: Solve for x
    x = 1,149,679,463.14/39,172.51
  6. Step 6: Final answer
    x = 29,349.14

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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.