Home / 39,442.72-54,430.94-21,537.80

Finding the Fourth Proportional to 39,442.72, 54,430.94 and 21,537.80

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Solution

The fourth proportional to 39,442.72, 54,430.94 and 21,537.80 is: 29,722.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,442.72 : 54,430.94 = 21,537.80 : x
  2. Step 2: Convert to fraction form
    39,442.72/54,430.94 = 21,537.80/x
  3. Step 3: Cross multiply
    39,442.72x = 54,430.94 × 21,537.80
  4. Step 4: Simplify right side
    39,442.72x = 1,172,322,699.53
  5. Step 5: Solve for x
    x = 1,172,322,699.53/39,442.72
  6. Step 6: Final answer
    x = 29,722.16

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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.