Home / 25,135.11-34,686.48-13,805.33

Finding the Fourth Proportional to 25,135.11, 34,686.48 and 13,805.33

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Solution

The fourth proportional to 25,135.11, 34,686.48 and 13,805.33 is: 19,051.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,135.11 : 34,686.48 = 13,805.33 : x
  2. Step 2: Convert to fraction form
    25,135.11/34,686.48 = 13,805.33/x
  3. Step 3: Cross multiply
    25,135.11x = 34,686.48 × 13,805.33
  4. Step 4: Simplify right side
    25,135.11x = 478,858,129.51
  5. Step 5: Solve for x
    x = 478,858,129.51/25,135.11
  6. Step 6: Final answer
    x = 19,051.36

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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.