Home / 42,021.27-57,989.35-23,158.39

Finding the Fourth Proportional to 42,021.27, 57,989.35 and 23,158.39

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Solution

The fourth proportional to 42,021.27, 57,989.35 and 23,158.39 is: 31,958.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,021.27 : 57,989.35 = 23,158.39 : x
  2. Step 2: Convert to fraction form
    42,021.27/57,989.35 = 23,158.39/x
  3. Step 3: Cross multiply
    42,021.27x = 57,989.35 × 23,158.39
  4. Step 4: Simplify right side
    42,021.27x = 1,342,939,867.35
  5. Step 5: Solve for x
    x = 1,342,939,867.35/42,021.27
  6. Step 6: Final answer
    x = 31,958.58

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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.