Home / 20,001.69-27,606.18-11,509.53

Finding the Fourth Proportional to 20,001.69, 27,606.18 and 11,509.53

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Solution

The fourth proportional to 20,001.69, 27,606.18 and 11,509.53 is: 15,885.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.69 : 27,606.18 = 11,509.53 : x
  2. Step 2: Convert to fraction form
    20,001.69/27,606.18 = 11,509.53/x
  3. Step 3: Cross multiply
    20,001.69x = 27,606.18 × 11,509.53
  4. Step 4: Simplify right side
    20,001.69x = 317,734,156.90
  5. Step 5: Solve for x
    x = 317,734,156.90/20,001.69
  6. Step 6: Final answer
    x = 15,885.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.