Home / 18,985.03-26,201.57-15,792.68

Finding the Fourth Proportional to 18,985.03, 26,201.57 and 15,792.68

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Solution

The fourth proportional to 18,985.03, 26,201.57 and 15,792.68 is: 21,795.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.03 : 26,201.57 = 15,792.68 : x
  2. Step 2: Convert to fraction form
    18,985.03/26,201.57 = 15,792.68/x
  3. Step 3: Cross multiply
    18,985.03x = 26,201.57 × 15,792.68
  4. Step 4: Simplify right side
    18,985.03x = 413,792,997.05
  5. Step 5: Solve for x
    x = 413,792,997.05/18,985.03
  6. Step 6: Final answer
    x = 21,795.75

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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.