Home / 21,652.86-29,857.52-18,795.75

Finding the Fourth Proportional to 21,652.86, 29,857.52 and 18,795.75

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Solution

The fourth proportional to 21,652.86, 29,857.52 and 18,795.75 is: 25,917.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,652.86 : 29,857.52 = 18,795.75 : x
  2. Step 2: Convert to fraction form
    21,652.86/29,857.52 = 18,795.75/x
  3. Step 3: Cross multiply
    21,652.86x = 29,857.52 × 18,795.75
  4. Step 4: Simplify right side
    21,652.86x = 561,194,332.25
  5. Step 5: Solve for x
    x = 561,194,332.25/21,652.86
  6. Step 6: Final answer
    x = 25,917.80

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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.