Home / 30,933.92-42,674.64-18,354.08

Finding the Fourth Proportional to 30,933.92, 42,674.64 and 18,354.08

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Solution

The fourth proportional to 30,933.92, 42,674.64 and 18,354.08 is: 25,320.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,933.92 : 42,674.64 = 18,354.08 : x
  2. Step 2: Convert to fraction form
    30,933.92/42,674.64 = 18,354.08/x
  3. Step 3: Cross multiply
    30,933.92x = 42,674.64 × 18,354.08
  4. Step 4: Simplify right side
    30,933.92x = 783,253,756.53
  5. Step 5: Solve for x
    x = 783,253,756.53/30,933.92
  6. Step 6: Final answer
    x = 25,320.22

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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.