Home / 27,128.48-37,437.36-15,191.76

Finding the Fourth Proportional to 27,128.48, 37,437.36 and 15,191.76

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Solution

The fourth proportional to 27,128.48, 37,437.36 and 15,191.76 is: 20,964.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,128.48 : 37,437.36 = 15,191.76 : x
  2. Step 2: Convert to fraction form
    27,128.48/37,437.36 = 15,191.76/x
  3. Step 3: Cross multiply
    27,128.48x = 37,437.36 × 15,191.76
  4. Step 4: Simplify right side
    27,128.48x = 568,739,388.15
  5. Step 5: Solve for x
    x = 568,739,388.15/27,128.48
  6. Step 6: Final answer
    x = 20,964.66

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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.