Home / 30,972.24-42,716.57-19,014.21

Finding the Fourth Proportional to 30,972.24, 42,716.57 and 19,014.21

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Solution

The fourth proportional to 30,972.24, 42,716.57 and 19,014.21 is: 26,224.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,972.24 : 42,716.57 = 19,014.21 : x
  2. Step 2: Convert to fraction form
    30,972.24/42,716.57 = 19,014.21/x
  3. Step 3: Cross multiply
    30,972.24x = 42,716.57 × 19,014.21
  4. Step 4: Simplify right side
    30,972.24x = 812,221,737.39
  5. Step 5: Solve for x
    x = 812,221,737.39/30,972.24
  6. Step 6: Final answer
    x = 26,224.18

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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.