Home / 31,235.21-43,077.34-22,142.59

Finding the Fourth Proportional to 31,235.21, 43,077.34 and 22,142.59

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Solution

The fourth proportional to 31,235.21, 43,077.34 and 22,142.59 is: 30,537.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,235.21 : 43,077.34 = 22,142.59 : x
  2. Step 2: Convert to fraction form
    31,235.21/43,077.34 = 22,142.59/x
  3. Step 3: Cross multiply
    31,235.21x = 43,077.34 × 22,142.59
  4. Step 4: Simplify right side
    31,235.21x = 953,843,877.91
  5. Step 5: Solve for x
    x = 953,843,877.91/31,235.21
  6. Step 6: Final answer
    x = 30,537.46

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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.