Home / 27,120.69-37,430.47-15,184.79

Finding the Fourth Proportional to 27,120.69, 37,430.47 and 15,184.79

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Solution

The fourth proportional to 27,120.69, 37,430.47 and 15,184.79 is: 20,957.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,120.69 : 37,430.47 = 15,184.79 : x
  2. Step 2: Convert to fraction form
    27,120.69/37,430.47 = 15,184.79/x
  3. Step 3: Cross multiply
    27,120.69x = 37,430.47 × 15,184.79
  4. Step 4: Simplify right side
    27,120.69x = 568,373,958.09
  5. Step 5: Solve for x
    x = 568,373,958.09/27,120.69
  6. Step 6: Final answer
    x = 20,957.21

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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.