Home / 38,490.16-53,112.90-22,571.68

Finding the Fourth Proportional to 38,490.16, 53,112.90 and 22,571.68

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Solution

The fourth proportional to 38,490.16, 53,112.90 and 22,571.68 is: 31,146.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,490.16 : 53,112.90 = 22,571.68 : x
  2. Step 2: Convert to fraction form
    38,490.16/53,112.90 = 22,571.68/x
  3. Step 3: Cross multiply
    38,490.16x = 53,112.90 × 22,571.68
  4. Step 4: Simplify right side
    38,490.16x = 1,198,847,382.67
  5. Step 5: Solve for x
    x = 1,198,847,382.67/38,490.16
  6. Step 6: Final answer
    x = 31,146.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.