Home / 39,261.45-54,181.52-21,356.60

Finding the Fourth Proportional to 39,261.45, 54,181.52 and 21,356.60

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Solution

The fourth proportional to 39,261.45, 54,181.52 and 21,356.60 is: 29,472.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,261.45 : 54,181.52 = 21,356.60 : x
  2. Step 2: Convert to fraction form
    39,261.45/54,181.52 = 21,356.60/x
  3. Step 3: Cross multiply
    39,261.45x = 54,181.52 × 21,356.60
  4. Step 4: Simplify right side
    39,261.45x = 1,157,133,050.03
  5. Step 5: Solve for x
    x = 1,157,133,050.03/39,261.45
  6. Step 6: Final answer
    x = 29,472.50

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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.