Home / 39,733.16-54,832.77-21,828.61

Finding the Fourth Proportional to 39,733.16, 54,832.77 and 21,828.61

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Solution

The fourth proportional to 39,733.16, 54,832.77 and 21,828.61 is: 30,124.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,733.16 : 54,832.77 = 21,828.61 : x
  2. Step 2: Convert to fraction form
    39,733.16/54,832.77 = 21,828.61/x
  3. Step 3: Cross multiply
    39,733.16x = 54,832.77 × 21,828.61
  4. Step 4: Simplify right side
    39,733.16x = 1,196,923,435.70
  5. Step 5: Solve for x
    x = 1,196,923,435.70/39,733.16
  6. Step 6: Final answer
    x = 30,124.05

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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.