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Finding the Fourth Proportional to 25,752.36, 38,804.02 and 21,174.92

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Solution

The fourth proportional to 25,752.36, 38,804.02 and 21,174.92 is: 31,906.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,752.36 : 38,804.02 = 21,174.92 : x
  2. Step 2: Convert to fraction form
    25,752.36/38,804.02 = 21,174.92/x
  3. Step 3: Cross multiply
    25,752.36x = 38,804.02 × 21,174.92
  4. Step 4: Simplify right side
    25,752.36x = 821,671,851.63
  5. Step 5: Solve for x
    x = 821,671,851.63/25,752.36
  6. Step 6: Final answer
    x = 31,906.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.