Home / 18,729.10-25,793.53-18,320.86

Finding the Fourth Proportional to 18,729.10, 25,793.53 and 18,320.86

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Solution

The fourth proportional to 18,729.10, 25,793.53 and 18,320.86 is: 25,231.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.10 : 25,793.53 = 18,320.86 : x
  2. Step 2: Convert to fraction form
    18,729.10/25,793.53 = 18,320.86/x
  3. Step 3: Cross multiply
    18,729.10x = 25,793.53 × 18,320.86
  4. Step 4: Simplify right side
    18,729.10x = 472,559,652.04
  5. Step 5: Solve for x
    x = 472,559,652.04/18,729.10
  6. Step 6: Final answer
    x = 25,231.31

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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.