Home / 39,003.72-53,825.06-21,098.74

Finding the Fourth Proportional to 39,003.72, 53,825.06 and 21,098.74

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Solution

The fourth proportional to 39,003.72, 53,825.06 and 21,098.74 is: 29,116.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,003.72 : 53,825.06 = 21,098.74 : x
  2. Step 2: Convert to fraction form
    39,003.72/53,825.06 = 21,098.74/x
  3. Step 3: Cross multiply
    39,003.72x = 53,825.06 × 21,098.74
  4. Step 4: Simplify right side
    39,003.72x = 1,135,640,946.42
  5. Step 5: Solve for x
    x = 1,135,640,946.42/39,003.72
  6. Step 6: Final answer
    x = 29,116.22

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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.