Home / 39,365.64-54,322.56-21,460.68

Finding the Fourth Proportional to 39,365.64, 54,322.56 and 21,460.68

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Solution

The fourth proportional to 39,365.64, 54,322.56 and 21,460.68 is: 29,614.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,365.64 : 54,322.56 = 21,460.68 : x
  2. Step 2: Convert to fraction form
    39,365.64/54,322.56 = 21,460.68/x
  3. Step 3: Cross multiply
    39,365.64x = 54,322.56 × 21,460.68
  4. Step 4: Simplify right side
    39,365.64x = 1,165,799,076.94
  5. Step 5: Solve for x
    x = 1,165,799,076.94/39,365.64
  6. Step 6: Final answer
    x = 29,614.64

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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.