Home / 27,963.90-38,572.61-18,404.28

Finding the Fourth Proportional to 27,963.90, 38,572.61 and 18,404.28

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Solution

The fourth proportional to 27,963.90, 38,572.61 and 18,404.28 is: 25,386.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,963.90 : 38,572.61 = 18,404.28 : x
  2. Step 2: Convert to fraction form
    27,963.90/38,572.61 = 18,404.28/x
  3. Step 3: Cross multiply
    27,963.90x = 38,572.61 × 18,404.28
  4. Step 4: Simplify right side
    27,963.90x = 709,901,022.75
  5. Step 5: Solve for x
    x = 709,901,022.75/27,963.90
  6. Step 6: Final answer
    x = 25,386.34

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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.