Home / 35,685.76-49,245.68-19,769.86

Finding the Fourth Proportional to 35,685.76, 49,245.68 and 19,769.86

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Solution

The fourth proportional to 35,685.76, 49,245.68 and 19,769.86 is: 27,282.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,685.76 : 49,245.68 = 19,769.86 : x
  2. Step 2: Convert to fraction form
    35,685.76/49,245.68 = 19,769.86/x
  3. Step 3: Cross multiply
    35,685.76x = 49,245.68 × 19,769.86
  4. Step 4: Simplify right side
    35,685.76x = 973,580,199.20
  5. Step 5: Solve for x
    x = 973,580,199.20/35,685.76
  6. Step 6: Final answer
    x = 27,282.04

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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.