Home / 38,400.22-52,991.04-21,403.72

Finding the Fourth Proportional to 38,400.22, 52,991.04 and 21,403.72

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Solution

The fourth proportional to 38,400.22, 52,991.04 and 21,403.72 is: 29,536.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,400.22 : 52,991.04 = 21,403.72 : x
  2. Step 2: Convert to fraction form
    38,400.22/52,991.04 = 21,403.72/x
  3. Step 3: Cross multiply
    38,400.22x = 52,991.04 × 21,403.72
  4. Step 4: Simplify right side
    38,400.22x = 1,134,205,382.67
  5. Step 5: Solve for x
    x = 1,134,205,382.67/38,400.22
  6. Step 6: Final answer
    x = 29,536.43

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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.