Home / 38,774.28-53,561.32-30,382.58

Finding the Fourth Proportional to 38,774.28, 53,561.32 and 30,382.58

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Solution

The fourth proportional to 38,774.28, 53,561.32 and 30,382.58 is: 41,969.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,774.28 : 53,561.32 = 30,382.58 : x
  2. Step 2: Convert to fraction form
    38,774.28/53,561.32 = 30,382.58/x
  3. Step 3: Cross multiply
    38,774.28x = 53,561.32 × 30,382.58
  4. Step 4: Simplify right side
    38,774.28x = 1,627,331,089.81
  5. Step 5: Solve for x
    x = 1,627,331,089.81/38,774.28
  6. Step 6: Final answer
    x = 41,969.34

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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.