Home / 38,806.93-53,558-21,581.01

Finding the Fourth Proportional to 38,806.93, 53,558 and 21,581.01

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Solution

The fourth proportional to 38,806.93, 53,558 and 21,581.01 is: 29,784.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,806.93 : 53,558 = 21,581.01 : x
  2. Step 2: Convert to fraction form
    38,806.93/53,558 = 21,581.01/x
  3. Step 3: Cross multiply
    38,806.93x = 53,558 × 21,581.01
  4. Step 4: Simplify right side
    38,806.93x = 1,155,835,733.58
  5. Step 5: Solve for x
    x = 1,155,835,733.58/38,806.93
  6. Step 6: Final answer
    x = 29,784.26

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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.