Home / 39,817.46-54,946.10-21,912.01

Finding the Fourth Proportional to 39,817.46, 54,946.10 and 21,912.01

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Solution

The fourth proportional to 39,817.46, 54,946.10 and 21,912.01 is: 30,237.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,817.46 : 54,946.10 = 21,912.01 : x
  2. Step 2: Convert to fraction form
    39,817.46/54,946.10 = 21,912.01/x
  3. Step 3: Cross multiply
    39,817.46x = 54,946.10 × 21,912.01
  4. Step 4: Simplify right side
    39,817.46x = 1,203,979,410.08
  5. Step 5: Solve for x
    x = 1,203,979,410.08/39,817.46
  6. Step 6: Final answer
    x = 30,237.47

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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.