Home / 21,597.08-29,786.35-18,134.30

Finding the Fourth Proportional to 21,597.08, 29,786.35 and 18,134.30

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Solution

The fourth proportional to 21,597.08, 29,786.35 and 18,134.30 is: 25,010.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,597.08 : 29,786.35 = 18,134.30 : x
  2. Step 2: Convert to fraction form
    21,597.08/29,786.35 = 18,134.30/x
  3. Step 3: Cross multiply
    21,597.08x = 29,786.35 × 18,134.30
  4. Step 4: Simplify right side
    21,597.08x = 540,154,606.81
  5. Step 5: Solve for x
    x = 540,154,606.81/21,597.08
  6. Step 6: Final answer
    x = 25,010.54

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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.