Home / 39,058.48-53,900.40-21,153.43

Finding the Fourth Proportional to 39,058.48, 53,900.40 and 21,153.43

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Solution

The fourth proportional to 39,058.48, 53,900.40 and 21,153.43 is: 29,191.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,058.48 : 53,900.40 = 21,153.43 : x
  2. Step 2: Convert to fraction form
    39,058.48/53,900.40 = 21,153.43/x
  3. Step 3: Cross multiply
    39,058.48x = 53,900.40 × 21,153.43
  4. Step 4: Simplify right side
    39,058.48x = 1,140,178,338.37
  5. Step 5: Solve for x
    x = 1,140,178,338.37/39,058.48
  6. Step 6: Final answer
    x = 29,191.57

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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.