Home / 31,544.23-47,315.31-12,818.71

Finding the Fourth Proportional to 31,544.23, 47,315.31 and 12,818.71

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Solution

The fourth proportional to 31,544.23, 47,315.31 and 12,818.71 is: 19,227.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,544.23 : 47,315.31 = 12,818.71 : x
  2. Step 2: Convert to fraction form
    31,544.23/47,315.31 = 12,818.71/x
  3. Step 3: Cross multiply
    31,544.23x = 47,315.31 × 12,818.71
  4. Step 4: Simplify right side
    31,544.23x = 606,521,237.45
  5. Step 5: Solve for x
    x = 606,521,237.45/31,544.23
  6. Step 6: Final answer
    x = 19,227.64

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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.