Home / 31,785.89-47,662.36-13,062.47

Finding the Fourth Proportional to 31,785.89, 47,662.36 and 13,062.47

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Solution

The fourth proportional to 31,785.89, 47,662.36 and 13,062.47 is: 19,586.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,785.89 : 47,662.36 = 13,062.47 : x
  2. Step 2: Convert to fraction form
    31,785.89/47,662.36 = 13,062.47/x
  3. Step 3: Cross multiply
    31,785.89x = 47,662.36 × 13,062.47
  4. Step 4: Simplify right side
    31,785.89x = 622,587,876.66
  5. Step 5: Solve for x
    x = 622,587,876.66/31,785.89
  6. Step 6: Final answer
    x = 19,586.93

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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.