Home / 20,020.08-27,628.32-11,068.16

Finding the Fourth Proportional to 20,020.08, 27,628.32 and 11,068.16

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Solution

The fourth proportional to 20,020.08, 27,628.32 and 11,068.16 is: 15,274.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.08 : 27,628.32 = 11,068.16 : x
  2. Step 2: Convert to fraction form
    20,020.08/27,628.32 = 11,068.16/x
  3. Step 3: Cross multiply
    20,020.08x = 27,628.32 × 11,068.16
  4. Step 4: Simplify right side
    20,020.08x = 305,794,666.29
  5. Step 5: Solve for x
    x = 305,794,666.29/20,020.08
  6. Step 6: Final answer
    x = 15,274.40

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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.