Home / 27,904.35-38,508-15,329.10

Finding the Fourth Proportional to 27,904.35, 38,508 and 15,329.10

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Solution

The fourth proportional to 27,904.35, 38,508 and 15,329.10 is: 21,154.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,904.35 : 38,508 = 15,329.10 : x
  2. Step 2: Convert to fraction form
    27,904.35/38,508 = 15,329.10/x
  3. Step 3: Cross multiply
    27,904.35x = 38,508 × 15,329.10
  4. Step 4: Simplify right side
    27,904.35x = 590,292,982.80
  5. Step 5: Solve for x
    x = 590,292,982.80/27,904.35
  6. Step 6: Final answer
    x = 21,154.16

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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.