Home / 31,933.28-44,078.14-20,603.10

Finding the Fourth Proportional to 31,933.28, 44,078.14 and 20,603.10

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Solution

The fourth proportional to 31,933.28, 44,078.14 and 20,603.10 is: 28,438.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,933.28 : 44,078.14 = 20,603.10 : x
  2. Step 2: Convert to fraction form
    31,933.28/44,078.14 = 20,603.10/x
  3. Step 3: Cross multiply
    31,933.28x = 44,078.14 × 20,603.10
  4. Step 4: Simplify right side
    31,933.28x = 908,146,326.23
  5. Step 5: Solve for x
    x = 908,146,326.23/31,933.28
  6. Step 6: Final answer
    x = 28,438.87

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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.