Home / 20,803.01-31,242.08-19,134.16

Finding the Fourth Proportional to 20,803.01, 31,242.08 and 19,134.16

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Solution

The fourth proportional to 20,803.01, 31,242.08 and 19,134.16 is: 28,735.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,803.01 : 31,242.08 = 19,134.16 : x
  2. Step 2: Convert to fraction form
    20,803.01/31,242.08 = 19,134.16/x
  3. Step 3: Cross multiply
    20,803.01x = 31,242.08 × 19,134.16
  4. Step 4: Simplify right side
    20,803.01x = 597,790,927.18
  5. Step 5: Solve for x
    x = 597,790,927.18/20,803.01
  6. Step 6: Final answer
    x = 28,735.80

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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.