Home / 20,148.08-30,205.53-8,895.42

Finding the Fourth Proportional to 20,148.08, 30,205.53 and 8,895.42

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Solution

The fourth proportional to 20,148.08, 30,205.53 and 8,895.42 is: 13,335.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.08 : 30,205.53 = 8,895.42 : x
  2. Step 2: Convert to fraction form
    20,148.08/30,205.53 = 8,895.42/x
  3. Step 3: Cross multiply
    20,148.08x = 30,205.53 × 8,895.42
  4. Step 4: Simplify right side
    20,148.08x = 268,690,875.67
  5. Step 5: Solve for x
    x = 268,690,875.67/20,148.08
  6. Step 6: Final answer
    x = 13,335.81

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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.