Home / 30,617.66-45,938.01-20,849.06

Finding the Fourth Proportional to 30,617.66, 45,938.01 and 20,849.06

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Solution

The fourth proportional to 30,617.66, 45,938.01 and 20,849.06 is: 31,281.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,617.66 : 45,938.01 = 20,849.06 : x
  2. Step 2: Convert to fraction form
    30,617.66/45,938.01 = 20,849.06/x
  3. Step 3: Cross multiply
    30,617.66x = 45,938.01 × 20,849.06
  4. Step 4: Simplify right side
    30,617.66x = 957,764,326.77
  5. Step 5: Solve for x
    x = 957,764,326.77/30,617.66
  6. Step 6: Final answer
    x = 31,281.43

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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.