Home / 25,421.51-35,081.25-13,936.34

Finding the Fourth Proportional to 25,421.51, 35,081.25 and 13,936.34

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Solution

The fourth proportional to 25,421.51, 35,081.25 and 13,936.34 is: 19,231.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,421.51 : 35,081.25 = 13,936.34 : x
  2. Step 2: Convert to fraction form
    25,421.51/35,081.25 = 13,936.34/x
  3. Step 3: Cross multiply
    25,421.51x = 35,081.25 × 13,936.34
  4. Step 4: Simplify right side
    25,421.51x = 488,904,201.19
  5. Step 5: Solve for x
    x = 488,904,201.19/25,421.51
  6. Step 6: Final answer
    x = 19,231.91

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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.