Home / 27,663.32-38,178.86-15,564.42

Finding the Fourth Proportional to 27,663.32, 38,178.86 and 15,564.42

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Solution

The fourth proportional to 27,663.32, 38,178.86 and 15,564.42 is: 21,480.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,663.32 : 38,178.86 = 15,564.42 : x
  2. Step 2: Convert to fraction form
    27,663.32/38,178.86 = 15,564.42/x
  3. Step 3: Cross multiply
    27,663.32x = 38,178.86 × 15,564.42
  4. Step 4: Simplify right side
    27,663.32x = 594,231,812.16
  5. Step 5: Solve for x
    x = 594,231,812.16/27,663.32
  6. Step 6: Final answer
    x = 21,480.86

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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.