Home / 39,157.74-54,036.30-21,252.38

Finding the Fourth Proportional to 39,157.74, 54,036.30 and 21,252.38

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Solution

The fourth proportional to 39,157.74, 54,036.30 and 21,252.38 is: 29,327.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,157.74 : 54,036.30 = 21,252.38 : x
  2. Step 2: Convert to fraction form
    39,157.74/54,036.30 = 21,252.38/x
  3. Step 3: Cross multiply
    39,157.74x = 54,036.30 × 21,252.38
  4. Step 4: Simplify right side
    39,157.74x = 1,148,399,875.13
  5. Step 5: Solve for x
    x = 1,148,399,875.13/39,157.74
  6. Step 6: Final answer
    x = 29,327.54

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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.