Home / 38,733.58-53,440.15-21,735.32

Finding the Fourth Proportional to 38,733.58, 53,440.15 and 21,735.32

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Solution

The fourth proportional to 38,733.58, 53,440.15 and 21,735.32 is: 29,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,733.58 : 53,440.15 = 21,735.32 : x
  2. Step 2: Convert to fraction form
    38,733.58/53,440.15 = 21,735.32/x
  3. Step 3: Cross multiply
    38,733.58x = 53,440.15 × 21,735.32
  4. Step 4: Simplify right side
    38,733.58x = 1,161,538,761.10
  5. Step 5: Solve for x
    x = 1,161,538,761.10/38,733.58
  6. Step 6: Final answer
    x = 29,987.90

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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.