Home / 39,102.72-53,961.93-21,197.70

Finding the Fourth Proportional to 39,102.72, 53,961.93 and 21,197.70

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Solution

The fourth proportional to 39,102.72, 53,961.93 and 21,197.70 is: 29,252.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,102.72 : 53,961.93 = 21,197.70 : x
  2. Step 2: Convert to fraction form
    39,102.72/53,961.93 = 21,197.70/x
  3. Step 3: Cross multiply
    39,102.72x = 53,961.93 × 21,197.70
  4. Step 4: Simplify right side
    39,102.72x = 1,143,868,803.56
  5. Step 5: Solve for x
    x = 1,143,868,803.56/39,102.72
  6. Step 6: Final answer
    x = 29,252.92

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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.