Home / 39,102.18-53,961.06-21,197.18

Finding the Fourth Proportional to 39,102.18, 53,961.06 and 21,197.18

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Solution

The fourth proportional to 39,102.18, 53,961.06 and 21,197.18 is: 29,252.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,102.18 : 53,961.06 = 21,197.18 : x
  2. Step 2: Convert to fraction form
    39,102.18/53,961.06 = 21,197.18/x
  3. Step 3: Cross multiply
    39,102.18x = 53,961.06 × 21,197.18
  4. Step 4: Simplify right side
    39,102.18x = 1,143,822,032.01
  5. Step 5: Solve for x
    x = 1,143,822,032.01/39,102.18
  6. Step 6: Final answer
    x = 29,252.13

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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.