Home / 47,854.93-71,782.40-12,793.68

Finding the Fourth Proportional to 47,854.93, 71,782.40 and 12,793.68

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Solution

The fourth proportional to 47,854.93, 71,782.40 and 12,793.68 is: 19,190.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,854.93 : 71,782.40 = 12,793.68 : x
  2. Step 2: Convert to fraction form
    47,854.93/71,782.40 = 12,793.68/x
  3. Step 3: Cross multiply
    47,854.93x = 71,782.40 × 12,793.68
  4. Step 4: Simplify right side
    47,854.93x = 918,360,632.35
  5. Step 5: Solve for x
    x = 918,360,632.35/47,854.93
  6. Step 6: Final answer
    x = 19,190.51

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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.