Home / 38,736.84-53,454.60-21,739.46

Finding the Fourth Proportional to 38,736.84, 53,454.60 and 21,739.46

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Solution

The fourth proportional to 38,736.84, 53,454.60 and 21,739.46 is: 29,999.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,736.84 : 53,454.60 = 21,739.46 : x
  2. Step 2: Convert to fraction form
    38,736.84/53,454.60 = 21,739.46/x
  3. Step 3: Cross multiply
    38,736.84x = 53,454.60 × 21,739.46
  4. Step 4: Simplify right side
    38,736.84x = 1,162,074,138.52
  5. Step 5: Solve for x
    x = 1,162,074,138.52/38,736.84
  6. Step 6: Final answer
    x = 29,999.20

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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.