Home / 39,365.06-54,322.23-21,459.68

Finding the Fourth Proportional to 39,365.06, 54,322.23 and 21,459.68

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Solution

The fourth proportional to 39,365.06, 54,322.23 and 21,459.68 is: 29,613.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,365.06 : 54,322.23 = 21,459.68 : x
  2. Step 2: Convert to fraction form
    39,365.06/54,322.23 = 21,459.68/x
  3. Step 3: Cross multiply
    39,365.06x = 54,322.23 × 21,459.68
  4. Step 4: Simplify right side
    39,365.06x = 1,165,737,672.69
  5. Step 5: Solve for x
    x = 1,165,737,672.69/39,365.06
  6. Step 6: Final answer
    x = 29,613.51

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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.