Home / 18,629.12-25,749.28-16,374.08

Finding the Fourth Proportional to 18,629.12, 25,749.28 and 16,374.08

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Solution

The fourth proportional to 18,629.12, 25,749.28 and 16,374.08 is: 22,632.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,629.12 : 25,749.28 = 16,374.08 : x
  2. Step 2: Convert to fraction form
    18,629.12/25,749.28 = 16,374.08/x
  3. Step 3: Cross multiply
    18,629.12x = 25,749.28 × 16,374.08
  4. Step 4: Simplify right side
    18,629.12x = 421,620,770.66
  5. Step 5: Solve for x
    x = 421,620,770.66/18,629.12
  6. Step 6: Final answer
    x = 22,632.35

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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.