Home / 39,275.36-54,200.12-21,370.36

Finding the Fourth Proportional to 39,275.36, 54,200.12 and 21,370.36

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Solution

The fourth proportional to 39,275.36, 54,200.12 and 21,370.36 is: 29,491.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,275.36 : 54,200.12 = 21,370.36 : x
  2. Step 2: Convert to fraction form
    39,275.36/54,200.12 = 21,370.36/x
  3. Step 3: Cross multiply
    39,275.36x = 54,200.12 × 21,370.36
  4. Step 4: Simplify right side
    39,275.36x = 1,158,276,076.44
  5. Step 5: Solve for x
    x = 1,158,276,076.44/39,275.36
  6. Step 6: Final answer
    x = 29,491.16

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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.