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Finding the Fourth Proportional to 53,019.63, 79,540.38 and 17,958.38

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Solution

The fourth proportional to 53,019.63, 79,540.38 and 17,958.38 is: 26,941.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,019.63 : 79,540.38 = 17,958.38 : x
  2. Step 2: Convert to fraction form
    53,019.63/79,540.38 = 17,958.38/x
  3. Step 3: Cross multiply
    53,019.63x = 79,540.38 × 17,958.38
  4. Step 4: Simplify right side
    53,019.63x = 1,428,415,971.68
  5. Step 5: Solve for x
    x = 1,428,415,971.68/53,019.63
  6. Step 6: Final answer
    x = 26,941.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.