Home / 39,365.39-54,322.65-21,459.33

Finding the Fourth Proportional to 39,365.39, 54,322.65 and 21,459.33

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Solution

The fourth proportional to 39,365.39, 54,322.65 and 21,459.33 is: 29,613.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,365.39 : 54,322.65 = 21,459.33 : x
  2. Step 2: Convert to fraction form
    39,365.39/54,322.65 = 21,459.33/x
  3. Step 3: Cross multiply
    39,365.39x = 54,322.65 × 21,459.33
  4. Step 4: Simplify right side
    39,365.39x = 1,165,727,672.82
  5. Step 5: Solve for x
    x = 1,165,727,672.82/39,365.39
  6. Step 6: Final answer
    x = 29,613.01

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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.