Home / 31,431.24-47,146.86-19,752.66

Finding the Fourth Proportional to 31,431.24, 47,146.86 and 19,752.66

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Solution

The fourth proportional to 31,431.24, 47,146.86 and 19,752.66 is: 29,628.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,431.24 : 47,146.86 = 19,752.66 : x
  2. Step 2: Convert to fraction form
    31,431.24/47,146.86 = 19,752.66/x
  3. Step 3: Cross multiply
    31,431.24x = 47,146.86 × 19,752.66
  4. Step 4: Simplify right side
    31,431.24x = 931,275,895.65
  5. Step 5: Solve for x
    x = 931,275,895.65/31,431.24
  6. Step 6: Final answer
    x = 29,628.99

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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.