Home / 25,878.57-38,835.81-11,840.33

Finding the Fourth Proportional to 25,878.57, 38,835.81 and 11,840.33

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Solution

The fourth proportional to 25,878.57, 38,835.81 and 11,840.33 is: 17,768.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,878.57 : 38,835.81 = 11,840.33 : x
  2. Step 2: Convert to fraction form
    25,878.57/38,835.81 = 11,840.33/x
  3. Step 3: Cross multiply
    25,878.57x = 38,835.81 × 11,840.33
  4. Step 4: Simplify right side
    25,878.57x = 459,828,612.04
  5. Step 5: Solve for x
    x = 459,828,612.04/25,878.57
  6. Step 6: Final answer
    x = 17,768.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.