Home / 31,590.30-47,357.91-11,863.56

Finding the Fourth Proportional to 31,590.30, 47,357.91 and 11,863.56

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Solution

The fourth proportional to 31,590.30, 47,357.91 and 11,863.56 is: 17,785.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,590.30 : 47,357.91 = 11,863.56 : x
  2. Step 2: Convert to fraction form
    31,590.30/47,357.91 = 11,863.56/x
  3. Step 3: Cross multiply
    31,590.30x = 47,357.91 × 11,863.56
  4. Step 4: Simplify right side
    31,590.30x = 561,833,406.76
  5. Step 5: Solve for x
    x = 561,833,406.76/31,590.30
  6. Step 6: Final answer
    x = 17,785.00

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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.