Home / 27,904.50-38,508.21-15,329.25

Finding the Fourth Proportional to 27,904.50, 38,508.21 and 15,329.25

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Solution

The fourth proportional to 27,904.50, 38,508.21 and 15,329.25 is: 21,154.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,904.50 : 38,508.21 = 15,329.25 : x
  2. Step 2: Convert to fraction form
    27,904.50/38,508.21 = 15,329.25/x
  3. Step 3: Cross multiply
    27,904.50x = 38,508.21 × 15,329.25
  4. Step 4: Simplify right side
    27,904.50x = 590,301,978.14
  5. Step 5: Solve for x
    x = 590,301,978.14/27,904.50
  6. Step 6: Final answer
    x = 21,154.37

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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.