Home / 31,500.45-47,252.37-12,777.69

Finding the Fourth Proportional to 31,500.45, 47,252.37 and 12,777.69

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Solution

The fourth proportional to 31,500.45, 47,252.37 and 12,777.69 is: 19,167.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,500.45 : 47,252.37 = 12,777.69 : x
  2. Step 2: Convert to fraction form
    31,500.45/47,252.37 = 12,777.69/x
  3. Step 3: Cross multiply
    31,500.45x = 47,252.37 × 12,777.69
  4. Step 4: Simplify right side
    31,500.45x = 603,776,135.63
  5. Step 5: Solve for x
    x = 603,776,135.63/31,500.45
  6. Step 6: Final answer
    x = 19,167.22

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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.