Home / 38,957.19-53,765.66-21,964.71

Finding the Fourth Proportional to 38,957.19, 53,765.66 and 21,964.71

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Solution

The fourth proportional to 38,957.19, 53,765.66 and 21,964.71 is: 30,313.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,957.19 : 53,765.66 = 21,964.71 : x
  2. Step 2: Convert to fraction form
    38,957.19/53,765.66 = 21,964.71/x
  3. Step 3: Cross multiply
    38,957.19x = 53,765.66 × 21,964.71
  4. Step 4: Simplify right side
    38,957.19x = 1,180,947,184.77
  5. Step 5: Solve for x
    x = 1,180,947,184.77/38,957.19
  6. Step 6: Final answer
    x = 30,313.97

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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.