Home / 20,118.86-30,178.93-9,590.03

Finding the Fourth Proportional to 20,118.86, 30,178.93 and 9,590.03

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Solution

The fourth proportional to 20,118.86, 30,178.93 and 9,590.03 is: 14,385.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118.86 : 30,178.93 = 9,590.03 : x
  2. Step 2: Convert to fraction form
    20,118.86/30,178.93 = 9,590.03/x
  3. Step 3: Cross multiply
    20,118.86x = 30,178.93 × 9,590.03
  4. Step 4: Simplify right side
    20,118.86x = 289,416,688.50
  5. Step 5: Solve for x
    x = 289,416,688.50/20,118.86
  6. Step 6: Final answer
    x = 14,385.34

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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.