Home / 53,020.35-79,472.21-21,838.59

Finding the Fourth Proportional to 53,020.35, 79,472.21 and 21,838.59

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Solution

The fourth proportional to 53,020.35, 79,472.21 and 21,838.59 is: 32,733.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,020.35 : 79,472.21 = 21,838.59 : x
  2. Step 2: Convert to fraction form
    53,020.35/79,472.21 = 21,838.59/x
  3. Step 3: Cross multiply
    53,020.35x = 79,472.21 × 21,838.59
  4. Step 4: Simplify right side
    53,020.35x = 1,735,560,901.39
  5. Step 5: Solve for x
    x = 1,735,560,901.39/53,020.35
  6. Step 6: Final answer
    x = 32,733.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.