Home / 31,144.80-46,731.78-13,612.35

Finding the Fourth Proportional to 31,144.80, 46,731.78 and 13,612.35

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Solution

The fourth proportional to 31,144.80, 46,731.78 and 13,612.35 is: 20,424.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,144.80 : 46,731.78 = 13,612.35 : x
  2. Step 2: Convert to fraction form
    31,144.80/46,731.78 = 13,612.35/x
  3. Step 3: Cross multiply
    31,144.80x = 46,731.78 × 13,612.35
  4. Step 4: Simplify right side
    31,144.80x = 636,129,345.48
  5. Step 5: Solve for x
    x = 636,129,345.48/31,144.80
  6. Step 6: Final answer
    x = 20,424.90

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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.