Home / 28,341.24-39,164.94-21,255.48

Finding the Fourth Proportional to 28,341.24, 39,164.94 and 21,255.48

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Solution

The fourth proportional to 28,341.24, 39,164.94 and 21,255.48 is: 29,373.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341.24 : 39,164.94 = 21,255.48 : x
  2. Step 2: Convert to fraction form
    28,341.24/39,164.94 = 21,255.48/x
  3. Step 3: Cross multiply
    28,341.24x = 39,164.94 × 21,255.48
  4. Step 4: Simplify right side
    28,341.24x = 832,469,598.87
  5. Step 5: Solve for x
    x = 832,469,598.87/28,341.24
  6. Step 6: Final answer
    x = 29,373.08

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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.