Home / 20,020.72-27,629.40-11,068.24

Finding the Fourth Proportional to 20,020.72, 27,629.40 and 11,068.24

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Solution

The fourth proportional to 20,020.72, 27,629.40 and 11,068.24 is: 15,274.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.72 : 27,629.40 = 11,068.24 : x
  2. Step 2: Convert to fraction form
    20,020.72/27,629.40 = 11,068.24/x
  3. Step 3: Cross multiply
    20,020.72x = 27,629.40 × 11,068.24
  4. Step 4: Simplify right side
    20,020.72x = 305,808,830.26
  5. Step 5: Solve for x
    x = 305,808,830.26/20,020.72
  6. Step 6: Final answer
    x = 15,274.62

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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.