Home / 27,300.78-37,678.70-15,366.44

Finding the Fourth Proportional to 27,300.78, 37,678.70 and 15,366.44

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Solution

The fourth proportional to 27,300.78, 37,678.70 and 15,366.44 is: 21,207.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,300.78 : 37,678.70 = 15,366.44 : x
  2. Step 2: Convert to fraction form
    27,300.78/37,678.70 = 15,366.44/x
  3. Step 3: Cross multiply
    27,300.78x = 37,678.70 × 15,366.44
  4. Step 4: Simplify right side
    27,300.78x = 578,987,615.44
  5. Step 5: Solve for x
    x = 578,987,615.44/27,300.78
  6. Step 6: Final answer
    x = 21,207.73

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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.