Home / 20,225.30-27,911.04-11,273.36

Finding the Fourth Proportional to 20,225.30, 27,911.04 and 11,273.36

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Solution

The fourth proportional to 20,225.30, 27,911.04 and 11,273.36 is: 15,557.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.30 : 27,911.04 = 11,273.36 : x
  2. Step 2: Convert to fraction form
    20,225.30/27,911.04 = 11,273.36/x
  3. Step 3: Cross multiply
    20,225.30x = 27,911.04 × 11,273.36
  4. Step 4: Simplify right side
    20,225.30x = 314,651,271.67
  5. Step 5: Solve for x
    x = 314,651,271.67/20,225.30
  6. Step 6: Final answer
    x = 15,557.31

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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.