Home / 31,455.42-47,183.13-28,335.30

Finding the Fourth Proportional to 31,455.42, 47,183.13 and 28,335.30

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Solution

The fourth proportional to 31,455.42, 47,183.13 and 28,335.30 is: 42,502.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455.42 : 47,183.13 = 28,335.30 : x
  2. Step 2: Convert to fraction form
    31,455.42/47,183.13 = 28,335.30/x
  3. Step 3: Cross multiply
    31,455.42x = 47,183.13 × 28,335.30
  4. Step 4: Simplify right side
    31,455.42x = 1,336,948,143.49
  5. Step 5: Solve for x
    x = 1,336,948,143.49/31,455.42
  6. Step 6: Final answer
    x = 42,502.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.