Home / 18,877.42-28,314.69-5,729.86

Finding the Fourth Proportional to 18,877.42, 28,314.69 and 5,729.86

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Solution

The fourth proportional to 18,877.42, 28,314.69 and 5,729.86 is: 8,594.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.42 : 28,314.69 = 5,729.86 : x
  2. Step 2: Convert to fraction form
    18,877.42/28,314.69 = 5,729.86/x
  3. Step 3: Cross multiply
    18,877.42x = 28,314.69 × 5,729.86
  4. Step 4: Simplify right side
    18,877.42x = 162,239,209.64
  5. Step 5: Solve for x
    x = 162,239,209.64/18,877.42
  6. Step 6: Final answer
    x = 8,594.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.