Home / 38,553.06-53,203.32-21,557.92

Finding the Fourth Proportional to 38,553.06, 53,203.32 and 21,557.92

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Solution

The fourth proportional to 38,553.06, 53,203.32 and 21,557.92 is: 29,749.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,553.06 : 53,203.32 = 21,557.92 : x
  2. Step 2: Convert to fraction form
    38,553.06/53,203.32 = 21,557.92/x
  3. Step 3: Cross multiply
    38,553.06x = 53,203.32 × 21,557.92
  4. Step 4: Simplify right side
    38,553.06x = 1,146,952,916.29
  5. Step 5: Solve for x
    x = 1,146,952,916.29/38,553.06
  6. Step 6: Final answer
    x = 29,749.98

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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.