Home / 39,434.76-54,419.58-21,530.34

Finding the Fourth Proportional to 39,434.76, 54,419.58 and 21,530.34

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Solution

The fourth proportional to 39,434.76, 54,419.58 and 21,530.34 is: 29,711.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,434.76 : 54,419.58 = 21,530.34 : x
  2. Step 2: Convert to fraction form
    39,434.76/54,419.58 = 21,530.34/x
  3. Step 3: Cross multiply
    39,434.76x = 54,419.58 × 21,530.34
  4. Step 4: Simplify right side
    39,434.76x = 1,171,672,060.06
  5. Step 5: Solve for x
    x = 1,171,672,060.06/39,434.76
  6. Step 6: Final answer
    x = 29,711.66

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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.