Home / 38,806.31-53,557.14-21,580.39

Finding the Fourth Proportional to 38,806.31, 53,557.14 and 21,580.39

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Solution

The fourth proportional to 38,806.31, 53,557.14 and 21,580.39 is: 29,783.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,806.31 : 53,557.14 = 21,580.39 : x
  2. Step 2: Convert to fraction form
    38,806.31/53,557.14 = 21,580.39/x
  3. Step 3: Cross multiply
    38,806.31x = 53,557.14 × 21,580.39
  4. Step 4: Simplify right side
    38,806.31x = 1,155,783,968.48
  5. Step 5: Solve for x
    x = 1,155,783,968.48/38,806.31
  6. Step 6: Final answer
    x = 29,783.41

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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.