Home / 31,223.78-46,778.96-18,048.32

Finding the Fourth Proportional to 31,223.78, 46,778.96 and 18,048.32

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Solution

The fourth proportional to 31,223.78, 46,778.96 and 18,048.32 is: 27,039.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,223.78 : 46,778.96 = 18,048.32 : x
  2. Step 2: Convert to fraction form
    31,223.78/46,778.96 = 18,048.32/x
  3. Step 3: Cross multiply
    31,223.78x = 46,778.96 × 18,048.32
  4. Step 4: Simplify right side
    31,223.78x = 844,281,639.35
  5. Step 5: Solve for x
    x = 844,281,639.35/31,223.78
  6. Step 6: Final answer
    x = 27,039.70

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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.