Home / 31,785.31-47,659.51-12,053.11

Finding the Fourth Proportional to 31,785.31, 47,659.51 and 12,053.11

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Solution

The fourth proportional to 31,785.31, 47,659.51 and 12,053.11 is: 18,072.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,785.31 : 47,659.51 = 12,053.11 : x
  2. Step 2: Convert to fraction form
    31,785.31/47,659.51 = 12,053.11/x
  3. Step 3: Cross multiply
    31,785.31x = 47,659.51 × 12,053.11
  4. Step 4: Simplify right side
    31,785.31x = 574,445,316.58
  5. Step 5: Solve for x
    x = 574,445,316.58/31,785.31
  6. Step 6: Final answer
    x = 18,072.67

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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.