Home / 39,406.34-54,380.94-21,501.74

Finding the Fourth Proportional to 39,406.34, 54,380.94 and 21,501.74

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Solution

The fourth proportional to 39,406.34, 54,380.94 and 21,501.74 is: 29,672.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,406.34 : 54,380.94 = 21,501.74 : x
  2. Step 2: Convert to fraction form
    39,406.34/54,380.94 = 21,501.74/x
  3. Step 3: Cross multiply
    39,406.34x = 54,380.94 × 21,501.74
  4. Step 4: Simplify right side
    39,406.34x = 1,169,284,832.84
  5. Step 5: Solve for x
    x = 1,169,284,832.84/39,406.34
  6. Step 6: Final answer
    x = 29,672.51

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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.