Home / 31,514.58-47,222.61-19,803.21

Finding the Fourth Proportional to 31,514.58, 47,222.61 and 19,803.21

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Solution

The fourth proportional to 31,514.58, 47,222.61 and 19,803.21 is: 29,673.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,514.58 : 47,222.61 = 19,803.21 : x
  2. Step 2: Convert to fraction form
    31,514.58/47,222.61 = 19,803.21/x
  3. Step 3: Cross multiply
    31,514.58x = 47,222.61 × 19,803.21
  4. Step 4: Simplify right side
    31,514.58x = 935,159,262.58
  5. Step 5: Solve for x
    x = 935,159,262.58/31,514.58
  6. Step 6: Final answer
    x = 29,673.86

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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.