Home / 25,425.36-38,138.28-11,386.08

Finding the Fourth Proportional to 25,425.36, 38,138.28 and 11,386.08

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Solution

The fourth proportional to 25,425.36, 38,138.28 and 11,386.08 is: 17,079.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,425.36 : 38,138.28 = 11,386.08 : x
  2. Step 2: Convert to fraction form
    25,425.36/38,138.28 = 11,386.08/x
  3. Step 3: Cross multiply
    25,425.36x = 38,138.28 × 11,386.08
  4. Step 4: Simplify right side
    25,425.36x = 434,245,507.14
  5. Step 5: Solve for x
    x = 434,245,507.14/25,425.36
  6. Step 6: Final answer
    x = 17,079.23

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1.5x scale

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.