Home / 38,806.57-53,557.51-21,580.66

Finding the Fourth Proportional to 38,806.57, 53,557.51 and 21,580.66

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Solution

The fourth proportional to 38,806.57, 53,557.51 and 21,580.66 is: 29,783.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,806.57 : 53,557.51 = 21,580.66 : x
  2. Step 2: Convert to fraction form
    38,806.57/53,557.51 = 21,580.66/x
  3. Step 3: Cross multiply
    38,806.57x = 53,557.51 × 21,580.66
  4. Step 4: Simplify right side
    38,806.57x = 1,155,806,266.37
  5. Step 5: Solve for x
    x = 1,155,806,266.37/38,806.57
  6. Step 6: Final answer
    x = 29,783.78

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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.