Home / 27,907.16-38,489.61-18,356.85

Finding the Fourth Proportional to 27,907.16, 38,489.61 and 18,356.85

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Solution

The fourth proportional to 27,907.16, 38,489.61 and 18,356.85 is: 25,317.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,907.16 : 38,489.61 = 18,356.85 : x
  2. Step 2: Convert to fraction form
    27,907.16/38,489.61 = 18,356.85/x
  3. Step 3: Cross multiply
    27,907.16x = 38,489.61 × 18,356.85
  4. Step 4: Simplify right side
    27,907.16x = 706,547,997.33
  5. Step 5: Solve for x
    x = 706,547,997.33/27,907.16
  6. Step 6: Final answer
    x = 25,317.80

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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.