Home / 31,610.85-43,603.68-20,276.52

Finding the Fourth Proportional to 31,610.85, 43,603.68 and 20,276.52

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Solution

The fourth proportional to 31,610.85, 43,603.68 and 20,276.52 is: 27,969.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,610.85 : 43,603.68 = 20,276.52 : x
  2. Step 2: Convert to fraction form
    31,610.85/43,603.68 = 20,276.52/x
  3. Step 3: Cross multiply
    31,610.85x = 43,603.68 × 20,276.52
  4. Step 4: Simplify right side
    31,610.85x = 884,130,889.59
  5. Step 5: Solve for x
    x = 884,130,889.59/31,610.85
  6. Step 6: Final answer
    x = 27,969.22

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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.