Home / 27,308.48-37,678.33-15,980.78

Finding the Fourth Proportional to 27,308.48, 37,678.33 and 15,980.78

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Solution

The fourth proportional to 27,308.48, 37,678.33 and 15,980.78 is: 22,049.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,308.48 : 37,678.33 = 15,980.78 : x
  2. Step 2: Convert to fraction form
    27,308.48/37,678.33 = 15,980.78/x
  3. Step 3: Cross multiply
    27,308.48x = 37,678.33 × 15,980.78
  4. Step 4: Simplify right side
    27,308.48x = 602,129,102.50
  5. Step 5: Solve for x
    x = 602,129,102.50/27,308.48
  6. Step 6: Final answer
    x = 22,049.16

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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.