Home / 38,704.32-53,409.24-21,707.28

Finding the Fourth Proportional to 38,704.32, 53,409.24 and 21,707.28

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Solution

The fourth proportional to 38,704.32, 53,409.24 and 21,707.28 is: 29,954.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,704.32 : 53,409.24 = 21,707.28 : x
  2. Step 2: Convert to fraction form
    38,704.32/53,409.24 = 21,707.28/x
  3. Step 3: Cross multiply
    38,704.32x = 53,409.24 × 21,707.28
  4. Step 4: Simplify right side
    38,704.32x = 1,159,369,327.27
  5. Step 5: Solve for x
    x = 1,159,369,327.27/38,704.32
  6. Step 6: Final answer
    x = 29,954.52

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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.