Home / 31,572.80-47,341.76-19,860.96

Finding the Fourth Proportional to 31,572.80, 47,341.76 and 19,860.96

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Solution

The fourth proportional to 31,572.80, 47,341.76 and 19,860.96 is: 29,780.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,572.80 : 47,341.76 = 19,860.96 : x
  2. Step 2: Convert to fraction form
    31,572.80/47,341.76 = 19,860.96/x
  3. Step 3: Cross multiply
    31,572.80x = 47,341.76 × 19,860.96
  4. Step 4: Simplify right side
    31,572.80x = 940,252,801.69
  5. Step 5: Solve for x
    x = 940,252,801.69/31,572.80
  6. Step 6: Final answer
    x = 29,780.47

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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.