Home / 31,520.72-47,050.40-27,784.20

Finding the Fourth Proportional to 31,520.72, 47,050.40 and 27,784.20

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Solution

The fourth proportional to 31,520.72, 47,050.40 and 27,784.20 is: 41,472.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,520.72 : 47,050.40 = 27,784.20 : x
  2. Step 2: Convert to fraction form
    31,520.72/47,050.40 = 27,784.20/x
  3. Step 3: Cross multiply
    31,520.72x = 47,050.40 × 27,784.20
  4. Step 4: Simplify right side
    31,520.72x = 1,307,257,723.68
  5. Step 5: Solve for x
    x = 1,307,257,723.68/31,520.72
  6. Step 6: Final answer
    x = 41,472.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.