Home / 39,238.02-54,148.88-21,333.44

Finding the Fourth Proportional to 39,238.02, 54,148.88 and 21,333.44

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Solution

The fourth proportional to 39,238.02, 54,148.88 and 21,333.44 is: 29,440.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,238.02 : 54,148.88 = 21,333.44 : x
  2. Step 2: Convert to fraction form
    39,238.02/54,148.88 = 21,333.44/x
  3. Step 3: Cross multiply
    39,238.02x = 54,148.88 × 21,333.44
  4. Step 4: Simplify right side
    39,238.02x = 1,155,181,505.14
  5. Step 5: Solve for x
    x = 1,155,181,505.14/39,238.02
  6. Step 6: Final answer
    x = 29,440.36

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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.