Home / 27,178.81-37,489.49-19,636.22

Finding the Fourth Proportional to 27,178.81, 37,489.49 and 19,636.22

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Solution

The fourth proportional to 27,178.81, 37,489.49 and 19,636.22 is: 27,085.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,178.81 : 37,489.49 = 19,636.22 : x
  2. Step 2: Convert to fraction form
    27,178.81/37,489.49 = 19,636.22/x
  3. Step 3: Cross multiply
    27,178.81x = 37,489.49 × 19,636.22
  4. Step 4: Simplify right side
    27,178.81x = 736,151,873.33
  5. Step 5: Solve for x
    x = 736,151,873.33/27,178.81
  6. Step 6: Final answer
    x = 27,085.51

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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.