Home / 31,437.72-47,156.31-12,717.54

Finding the Fourth Proportional to 31,437.72, 47,156.31 and 12,717.54

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Solution

The fourth proportional to 31,437.72, 47,156.31 and 12,717.54 is: 19,076.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,437.72 : 47,156.31 = 12,717.54 : x
  2. Step 2: Convert to fraction form
    31,437.72/47,156.31 = 12,717.54/x
  3. Step 3: Cross multiply
    31,437.72x = 47,156.31 × 12,717.54
  4. Step 4: Simplify right side
    31,437.72x = 599,712,258.68
  5. Step 5: Solve for x
    x = 599,712,258.68/31,437.72
  6. Step 6: Final answer
    x = 19,076.20

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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.