Home / 27,781.69-38,337.25-15,204.01

Finding the Fourth Proportional to 27,781.69, 38,337.25 and 15,204.01

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Solution

The fourth proportional to 27,781.69, 38,337.25 and 15,204.01 is: 20,980.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,781.69 : 38,337.25 = 15,204.01 : x
  2. Step 2: Convert to fraction form
    27,781.69/38,337.25 = 15,204.01/x
  3. Step 3: Cross multiply
    27,781.69x = 38,337.25 × 15,204.01
  4. Step 4: Simplify right side
    27,781.69x = 582,879,740.69
  5. Step 5: Solve for x
    x = 582,879,740.69/27,781.69
  6. Step 6: Final answer
    x = 20,980.72

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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.