Home / 22,729.77-31,379.36-15,944.58

Finding the Fourth Proportional to 22,729.77, 31,379.36 and 15,944.58

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Solution

The fourth proportional to 22,729.77, 31,379.36 and 15,944.58 is: 22,012.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,729.77 : 31,379.36 = 15,944.58 : x
  2. Step 2: Convert to fraction form
    22,729.77/31,379.36 = 15,944.58/x
  3. Step 3: Cross multiply
    22,729.77x = 31,379.36 × 15,944.58
  4. Step 4: Simplify right side
    22,729.77x = 500,330,636.15
  5. Step 5: Solve for x
    x = 500,330,636.15/22,729.77
  6. Step 6: Final answer
    x = 22,012.13

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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.