Home / 22,438.32-30,970.15-13,946.85

Finding the Fourth Proportional to 22,438.32, 30,970.15 and 13,946.85

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Solution

The fourth proportional to 22,438.32, 30,970.15 and 13,946.85 is: 19,249.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,438.32 : 30,970.15 = 13,946.85 : x
  2. Step 2: Convert to fraction form
    22,438.32/30,970.15 = 13,946.85/x
  3. Step 3: Cross multiply
    22,438.32x = 30,970.15 × 13,946.85
  4. Step 4: Simplify right side
    22,438.32x = 431,936,036.53
  5. Step 5: Solve for x
    x = 431,936,036.53/22,438.32
  6. Step 6: Final answer
    x = 19,249.93

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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.