Home / 31,804.72-47,705.56-12,081.74

Finding the Fourth Proportional to 31,804.72, 47,705.56 and 12,081.74

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Solution

The fourth proportional to 31,804.72, 47,705.56 and 12,081.74 is: 18,122.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,804.72 : 47,705.56 = 12,081.74 : x
  2. Step 2: Convert to fraction form
    31,804.72/47,705.56 = 12,081.74/x
  3. Step 3: Cross multiply
    31,804.72x = 47,705.56 × 12,081.74
  4. Step 4: Simplify right side
    31,804.72x = 576,366,172.47
  5. Step 5: Solve for x
    x = 576,366,172.47/31,804.72
  6. Step 6: Final answer
    x = 18,122.03

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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.