Home / 31,475.24-47,212.99-12,755.63

Finding the Fourth Proportional to 31,475.24, 47,212.99 and 12,755.63

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Solution

The fourth proportional to 31,475.24, 47,212.99 and 12,755.63 is: 19,133.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,475.24 : 47,212.99 = 12,755.63 : x
  2. Step 2: Convert to fraction form
    31,475.24/47,212.99 = 12,755.63/x
  3. Step 3: Cross multiply
    31,475.24x = 47,212.99 × 12,755.63
  4. Step 4: Simplify right side
    31,475.24x = 602,231,431.63
  5. Step 5: Solve for x
    x = 602,231,431.63/31,475.24
  6. Step 6: Final answer
    x = 19,133.50

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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.