Home / 25,431.36-38,154.52-11,388.28

Finding the Fourth Proportional to 25,431.36, 38,154.52 and 11,388.28

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Solution

The fourth proportional to 25,431.36, 38,154.52 and 11,388.28 is: 17,085.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,431.36 : 38,154.52 = 11,388.28 : x
  2. Step 2: Convert to fraction form
    25,431.36/38,154.52 = 11,388.28/x
  3. Step 3: Cross multiply
    25,431.36x = 38,154.52 × 11,388.28
  4. Step 4: Simplify right side
    25,431.36x = 434,514,357.03
  5. Step 5: Solve for x
    x = 434,514,357.03/25,431.36
  6. Step 6: Final answer
    x = 17,085.77

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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.