Home / 38,731.42-53,446.20-21,733.30

Finding the Fourth Proportional to 38,731.42, 53,446.20 and 21,733.30

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Solution

The fourth proportional to 38,731.42, 53,446.20 and 21,733.30 is: 29,990.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,731.42 : 53,446.20 = 21,733.30 : x
  2. Step 2: Convert to fraction form
    38,731.42/53,446.20 = 21,733.30/x
  3. Step 3: Cross multiply
    38,731.42x = 53,446.20 × 21,733.30
  4. Step 4: Simplify right side
    38,731.42x = 1,161,562,298.46
  5. Step 5: Solve for x
    x = 1,161,562,298.46/38,731.42
  6. Step 6: Final answer
    x = 29,990.18

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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.