Home / 30,631.68-45,914.76-20,097.72

Finding the Fourth Proportional to 30,631.68, 45,914.76 and 20,097.72

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Solution

The fourth proportional to 30,631.68, 45,914.76 and 20,097.72 is: 30,125.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,631.68 : 45,914.76 = 20,097.72 : x
  2. Step 2: Convert to fraction form
    30,631.68/45,914.76 = 20,097.72/x
  3. Step 3: Cross multiply
    30,631.68x = 45,914.76 × 20,097.72
  4. Step 4: Simplify right side
    30,631.68x = 922,781,990.35
  5. Step 5: Solve for x
    x = 922,781,990.35/30,631.68
  6. Step 6: Final answer
    x = 30,125.09

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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.