Home / 20,153.50-30,230.20-5,362.40

Finding the Fourth Proportional to 20,153.50, 30,230.20 and 5,362.40

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Solution

The fourth proportional to 20,153.50, 30,230.20 and 5,362.40 is: 8,043.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.50 : 30,230.20 = 5,362.40 : x
  2. Step 2: Convert to fraction form
    20,153.50/30,230.20 = 5,362.40/x
  3. Step 3: Cross multiply
    20,153.50x = 30,230.20 × 5,362.40
  4. Step 4: Simplify right side
    20,153.50x = 162,106,424.48
  5. Step 5: Solve for x
    x = 162,106,424.48/20,153.50
  6. Step 6: Final answer
    x = 8,043.59

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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.