Home / 20,389.91-30,535.65-11,598.17

Finding the Fourth Proportional to 20,389.91, 30,535.65 and 11,598.17

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Solution

The fourth proportional to 20,389.91, 30,535.65 and 11,598.17 is: 17,369.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,389.91 : 30,535.65 = 11,598.17 : x
  2. Step 2: Convert to fraction form
    20,389.91/30,535.65 = 11,598.17/x
  3. Step 3: Cross multiply
    20,389.91x = 30,535.65 × 11,598.17
  4. Step 4: Simplify right side
    20,389.91x = 354,157,507.08
  5. Step 5: Solve for x
    x = 354,157,507.08/20,389.91
  6. Step 6: Final answer
    x = 17,369.26

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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.