Home / 20,574.10-30,898.80-18,839.08

Finding the Fourth Proportional to 20,574.10, 30,898.80 and 18,839.08

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Solution

The fourth proportional to 20,574.10, 30,898.80 and 18,839.08 is: 28,293.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.10 : 30,898.80 = 18,839.08 : x
  2. Step 2: Convert to fraction form
    20,574.10/30,898.80 = 18,839.08/x
  3. Step 3: Cross multiply
    20,574.10x = 30,898.80 × 18,839.08
  4. Step 4: Simplify right side
    20,574.10x = 582,104,965.10
  5. Step 5: Solve for x
    x = 582,104,965.10/20,574.10
  6. Step 6: Final answer
    x = 28,293.09

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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.