Home / 31,933.91-44,079.02-20,603.72

Finding the Fourth Proportional to 31,933.91, 44,079.02 and 20,603.72

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Solution

The fourth proportional to 31,933.91, 44,079.02 and 20,603.72 is: 28,439.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,933.91 : 44,079.02 = 20,603.72 : x
  2. Step 2: Convert to fraction form
    31,933.91/44,079.02 = 20,603.72/x
  3. Step 3: Cross multiply
    31,933.91x = 44,079.02 × 20,603.72
  4. Step 4: Simplify right side
    31,933.91x = 908,191,462.54
  5. Step 5: Solve for x
    x = 908,191,462.54/31,933.91
  6. Step 6: Final answer
    x = 28,439.72

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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.