Home / 20,199.60-30,302.64-9,110.16

Finding the Fourth Proportional to 20,199.60, 30,302.64 and 9,110.16

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Solution

The fourth proportional to 20,199.60, 30,302.64 and 9,110.16 is: 13,666.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199.60 : 30,302.64 = 9,110.16 : x
  2. Step 2: Convert to fraction form
    20,199.60/30,302.64 = 9,110.16/x
  3. Step 3: Cross multiply
    20,199.60x = 30,302.64 × 9,110.16
  4. Step 4: Simplify right side
    20,199.60x = 276,061,898.82
  5. Step 5: Solve for x
    x = 276,061,898.82/20,199.60
  6. Step 6: Final answer
    x = 13,666.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.