Home / 30,933.72-42,673.50-18,349.56

Finding the Fourth Proportional to 30,933.72, 42,673.50 and 18,349.56

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Solution

The fourth proportional to 30,933.72, 42,673.50 and 18,349.56 is: 25,313.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,933.72 : 42,673.50 = 18,349.56 : x
  2. Step 2: Convert to fraction form
    30,933.72/42,673.50 = 18,349.56/x
  3. Step 3: Cross multiply
    30,933.72x = 42,673.50 × 18,349.56
  4. Step 4: Simplify right side
    30,933.72x = 783,039,948.66
  5. Step 5: Solve for x
    x = 783,039,948.66/30,933.72
  6. Step 6: Final answer
    x = 25,313.48

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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.