Home / 20,070.08-27,697.68-12,112.16

Finding the Fourth Proportional to 20,070.08, 27,697.68 and 12,112.16

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Solution

The fourth proportional to 20,070.08, 27,697.68 and 12,112.16 is: 16,715.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,070.08 : 27,697.68 = 12,112.16 : x
  2. Step 2: Convert to fraction form
    20,070.08/27,697.68 = 12,112.16/x
  3. Step 3: Cross multiply
    20,070.08x = 27,697.68 × 12,112.16
  4. Step 4: Simplify right side
    20,070.08x = 335,478,731.79
  5. Step 5: Solve for x
    x = 335,478,731.79/20,070.08
  6. Step 6: Final answer
    x = 16,715.37

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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.