Home / 25,009.89-34,513.88-13,679.16

Finding the Fourth Proportional to 25,009.89, 34,513.88 and 13,679.16

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Solution

The fourth proportional to 25,009.89, 34,513.88 and 13,679.16 is: 18,877.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,009.89 : 34,513.88 = 13,679.16 : x
  2. Step 2: Convert to fraction form
    25,009.89/34,513.88 = 13,679.16/x
  3. Step 3: Cross multiply
    25,009.89x = 34,513.88 × 13,679.16
  4. Step 4: Simplify right side
    25,009.89x = 472,120,818.35
  5. Step 5: Solve for x
    x = 472,120,818.35/25,009.89
  6. Step 6: Final answer
    x = 18,877.36

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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.