Home / 31,427.74-47,141.49-12,707.56

Finding the Fourth Proportional to 31,427.74, 47,141.49 and 12,707.56

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Solution

The fourth proportional to 31,427.74, 47,141.49 and 12,707.56 is: 19,061.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,427.74 : 47,141.49 = 12,707.56 : x
  2. Step 2: Convert to fraction form
    31,427.74/47,141.49 = 12,707.56/x
  3. Step 3: Cross multiply
    31,427.74x = 47,141.49 × 12,707.56
  4. Step 4: Simplify right side
    31,427.74x = 599,053,013.42
  5. Step 5: Solve for x
    x = 599,053,013.42/31,427.74
  6. Step 6: Final answer
    x = 19,061.28

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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.