Home / 31,456.31-47,184.36-12,736.20

Finding the Fourth Proportional to 31,456.31, 47,184.36 and 12,736.20

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Solution

The fourth proportional to 31,456.31, 47,184.36 and 12,736.20 is: 19,104.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,456.31 : 47,184.36 = 12,736.20 : x
  2. Step 2: Convert to fraction form
    31,456.31/47,184.36 = 12,736.20/x
  3. Step 3: Cross multiply
    31,456.31x = 47,184.36 × 12,736.20
  4. Step 4: Simplify right side
    31,456.31x = 600,949,268.89
  5. Step 5: Solve for x
    x = 600,949,268.89/31,456.31
  6. Step 6: Final answer
    x = 19,104.25

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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.