Home / 39,434.46-54,419.74-21,529.88

Finding the Fourth Proportional to 39,434.46, 54,419.74 and 21,529.88

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Solution

The fourth proportional to 39,434.46, 54,419.74 and 21,529.88 is: 29,711.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,434.46 : 54,419.74 = 21,529.88 : x
  2. Step 2: Convert to fraction form
    39,434.46/54,419.74 = 21,529.88/x
  3. Step 3: Cross multiply
    39,434.46x = 54,419.74 × 21,529.88
  4. Step 4: Simplify right side
    39,434.46x = 1,171,650,349.98
  5. Step 5: Solve for x
    x = 1,171,650,349.98/39,434.46
  6. Step 6: Final answer
    x = 29,711.34

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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.