Home / 38,666.96-53,364.15-21,674.09

Finding the Fourth Proportional to 38,666.96, 53,364.15 and 21,674.09

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Solution

The fourth proportional to 38,666.96, 53,364.15 and 21,674.09 is: 29,912.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,666.96 : 53,364.15 = 21,674.09 : x
  2. Step 2: Convert to fraction form
    38,666.96/53,364.15 = 21,674.09/x
  3. Step 3: Cross multiply
    38,666.96x = 53,364.15 × 21,674.09
  4. Step 4: Simplify right side
    38,666.96x = 1,156,619,389.87
  5. Step 5: Solve for x
    x = 1,156,619,389.87/38,666.96
  6. Step 6: Final answer
    x = 29,912.34

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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.