Home / 38,518.56-53,165.28-21,761.28

Finding the Fourth Proportional to 38,518.56, 53,165.28 and 21,761.28

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Solution

The fourth proportional to 38,518.56, 53,165.28 and 21,761.28 is: 30,036.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,518.56 : 53,165.28 = 21,761.28 : x
  2. Step 2: Convert to fraction form
    38,518.56/53,165.28 = 21,761.28/x
  3. Step 3: Cross multiply
    38,518.56x = 53,165.28 × 21,761.28
  4. Step 4: Simplify right side
    38,518.56x = 1,156,944,544.36
  5. Step 5: Solve for x
    x = 1,156,944,544.36/38,518.56
  6. Step 6: Final answer
    x = 30,036.03

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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.