Home / 38,826.66-53,574.24-21,828.66

Finding the Fourth Proportional to 38,826.66, 53,574.24 and 21,828.66

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Solution

The fourth proportional to 38,826.66, 53,574.24 and 21,828.66 is: 30,119.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,826.66 : 53,574.24 = 21,828.66 : x
  2. Step 2: Convert to fraction form
    38,826.66/53,574.24 = 21,828.66/x
  3. Step 3: Cross multiply
    38,826.66x = 53,574.24 × 21,828.66
  4. Step 4: Simplify right side
    38,826.66x = 1,169,453,869.72
  5. Step 5: Solve for x
    x = 1,169,453,869.72/38,826.66
  6. Step 6: Final answer
    x = 30,119.87

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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.