Home / 31,488.91-47,232.60-12,763.94

Finding the Fourth Proportional to 31,488.91, 47,232.60 and 12,763.94

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Solution

The fourth proportional to 31,488.91, 47,232.60 and 12,763.94 is: 19,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,488.91 : 47,232.60 = 12,763.94 : x
  2. Step 2: Convert to fraction form
    31,488.91/47,232.60 = 12,763.94/x
  3. Step 3: Cross multiply
    31,488.91x = 47,232.60 × 12,763.94
  4. Step 4: Simplify right side
    31,488.91x = 602,874,072.44
  5. Step 5: Solve for x
    x = 602,874,072.44/31,488.91
  6. Step 6: Final answer
    x = 19,145.60

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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.