Home / 31,778.79-47,657.24-12,062.98

Finding the Fourth Proportional to 31,778.79, 47,657.24 and 12,062.98

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Solution

The fourth proportional to 31,778.79, 47,657.24 and 12,062.98 is: 18,090.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.79 : 47,657.24 = 12,062.98 : x
  2. Step 2: Convert to fraction form
    31,778.79/47,657.24 = 12,062.98/x
  3. Step 3: Cross multiply
    31,778.79x = 47,657.24 × 12,062.98
  4. Step 4: Simplify right side
    31,778.79x = 574,888,332.98
  5. Step 5: Solve for x
    x = 574,888,332.98/31,778.79
  6. Step 6: Final answer
    x = 18,090.32

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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.