Home / 38,639.34-53,322.97-21,643.44

Finding the Fourth Proportional to 38,639.34, 53,322.97 and 21,643.44

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Solution

The fourth proportional to 38,639.34, 53,322.97 and 21,643.44 is: 29,868.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639.34 : 53,322.97 = 21,643.44 : x
  2. Step 2: Convert to fraction form
    38,639.34/53,322.97 = 21,643.44/x
  3. Step 3: Cross multiply
    38,639.34x = 53,322.97 × 21,643.44
  4. Step 4: Simplify right side
    38,639.34x = 1,154,092,501.82
  5. Step 5: Solve for x
    x = 1,154,092,501.82/38,639.34
  6. Step 6: Final answer
    x = 29,868.33

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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.