Home / 28,053.42-38,715.62-16,121.52

Finding the Fourth Proportional to 28,053.42, 38,715.62 and 16,121.52

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Solution

The fourth proportional to 28,053.42, 38,715.62 and 16,121.52 is: 22,248.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,053.42 : 38,715.62 = 16,121.52 : x
  2. Step 2: Convert to fraction form
    28,053.42/38,715.62 = 16,121.52/x
  3. Step 3: Cross multiply
    28,053.42x = 38,715.62 × 16,121.52
  4. Step 4: Simplify right side
    28,053.42x = 624,154,561.53
  5. Step 5: Solve for x
    x = 624,154,561.53/28,053.42
  6. Step 6: Final answer
    x = 22,248.79

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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.