Home / 39,270.83-54,194.28-21,366.05

Finding the Fourth Proportional to 39,270.83, 54,194.28 and 21,366.05

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Solution

The fourth proportional to 39,270.83, 54,194.28 and 21,366.05 is: 29,485.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,270.83 : 54,194.28 = 21,366.05 : x
  2. Step 2: Convert to fraction form
    39,270.83/54,194.28 = 21,366.05/x
  3. Step 3: Cross multiply
    39,270.83x = 54,194.28 × 21,366.05
  4. Step 4: Simplify right side
    39,270.83x = 1,157,917,696.19
  5. Step 5: Solve for x
    x = 1,157,917,696.19/39,270.83
  6. Step 6: Final answer
    x = 29,485.44

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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.