Home / 39,275.25-54,198.21-21,370.32

Finding the Fourth Proportional to 39,275.25, 54,198.21 and 21,370.32

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Solution

The fourth proportional to 39,275.25, 54,198.21 and 21,370.32 is: 29,490.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,275.25 : 54,198.21 = 21,370.32 : x
  2. Step 2: Convert to fraction form
    39,275.25/54,198.21 = 21,370.32/x
  3. Step 3: Cross multiply
    39,275.25x = 54,198.21 × 21,370.32
  4. Step 4: Simplify right side
    39,275.25x = 1,158,233,091.13
  5. Step 5: Solve for x
    x = 1,158,233,091.13/39,275.25
  6. Step 6: Final answer
    x = 29,490.15

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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.