Home / 30,621.73-45,933.06-10,899.78

Finding the Fourth Proportional to 30,621.73, 45,933.06 and 10,899.78

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Solution

The fourth proportional to 30,621.73, 45,933.06 and 10,899.78 is: 16,349.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,621.73 : 45,933.06 = 10,899.78 : x
  2. Step 2: Convert to fraction form
    30,621.73/45,933.06 = 10,899.78/x
  3. Step 3: Cross multiply
    30,621.73x = 45,933.06 × 10,899.78
  4. Step 4: Simplify right side
    30,621.73x = 500,660,248.73
  5. Step 5: Solve for x
    x = 500,660,248.73/30,621.73
  6. Step 6: Final answer
    x = 16,349.84

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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.