Home / 31,570.72-47,367.12-14,038.88

Finding the Fourth Proportional to 31,570.72, 47,367.12 and 14,038.88

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Solution

The fourth proportional to 31,570.72, 47,367.12 and 14,038.88 is: 21,063.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,570.72 : 47,367.12 = 14,038.88 : x
  2. Step 2: Convert to fraction form
    31,570.72/47,367.12 = 14,038.88/x
  3. Step 3: Cross multiply
    31,570.72x = 47,367.12 × 14,038.88
  4. Step 4: Simplify right side
    31,570.72x = 664,981,313.63
  5. Step 5: Solve for x
    x = 664,981,313.63/31,570.72
  6. Step 6: Final answer
    x = 21,063.23

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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.