Home / 39,517.89-54,533.93-21,612.84

Finding the Fourth Proportional to 39,517.89, 54,533.93 and 21,612.84

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Solution

The fourth proportional to 39,517.89, 54,533.93 and 21,612.84 is: 29,825.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,517.89 : 54,533.93 = 21,612.84 : x
  2. Step 2: Convert to fraction form
    39,517.89/54,533.93 = 21,612.84/x
  3. Step 3: Cross multiply
    39,517.89x = 54,533.93 × 21,612.84
  4. Step 4: Simplify right side
    39,517.89x = 1,178,632,995.60
  5. Step 5: Solve for x
    x = 1,178,632,995.60/39,517.89
  6. Step 6: Final answer
    x = 29,825.30

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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.