Home / 20,153.02-30,201.93-15,218.62

Finding the Fourth Proportional to 20,153.02, 30,201.93 and 15,218.62

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Solution

The fourth proportional to 20,153.02, 30,201.93 and 15,218.62 is: 22,807.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.02 : 30,201.93 = 15,218.62 : x
  2. Step 2: Convert to fraction form
    20,153.02/30,201.93 = 15,218.62/x
  3. Step 3: Cross multiply
    20,153.02x = 30,201.93 × 15,218.62
  4. Step 4: Simplify right side
    20,153.02x = 459,631,695.94
  5. Step 5: Solve for x
    x = 459,631,695.94/20,153.02
  6. Step 6: Final answer
    x = 22,807.09

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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.