Home / 38,611.08-53,283.42-21,616.07

Finding the Fourth Proportional to 38,611.08, 53,283.42 and 21,616.07

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Solution

The fourth proportional to 38,611.08, 53,283.42 and 21,616.07 is: 29,830.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,611.08 : 53,283.42 = 21,616.07 : x
  2. Step 2: Convert to fraction form
    38,611.08/53,283.42 = 21,616.07/x
  3. Step 3: Cross multiply
    38,611.08x = 53,283.42 × 21,616.07
  4. Step 4: Simplify right side
    38,611.08x = 1,151,777,870.14
  5. Step 5: Solve for x
    x = 1,151,777,870.14/38,611.08
  6. Step 6: Final answer
    x = 29,830.24

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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.