Home / 20,178.45-30,208.48-14,153.64

Finding the Fourth Proportional to 20,178.45, 30,208.48 and 14,153.64

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Solution

The fourth proportional to 20,178.45, 30,208.48 and 14,153.64 is: 21,188.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.45 : 30,208.48 = 14,153.64 : x
  2. Step 2: Convert to fraction form
    20,178.45/30,208.48 = 14,153.64/x
  3. Step 3: Cross multiply
    20,178.45x = 30,208.48 × 14,153.64
  4. Step 4: Simplify right side
    20,178.45x = 427,559,802.20
  5. Step 5: Solve for x
    x = 427,559,802.20/20,178.45
  6. Step 6: Final answer
    x = 21,188.93

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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.