Home / 39,157.24-54,036.88-21,252.08

Finding the Fourth Proportional to 39,157.24, 54,036.88 and 21,252.08

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Solution

The fourth proportional to 39,157.24, 54,036.88 and 21,252.08 is: 29,327.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,157.24 : 54,036.88 = 21,252.08 : x
  2. Step 2: Convert to fraction form
    39,157.24/54,036.88 = 21,252.08/x
  3. Step 3: Cross multiply
    39,157.24x = 54,036.88 × 21,252.08
  4. Step 4: Simplify right side
    39,157.24x = 1,148,396,096.71
  5. Step 5: Solve for x
    x = 1,148,396,096.71/39,157.24
  6. Step 6: Final answer
    x = 29,327.81

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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.