Home / 20,646.70-28,494.43-11,573.59

Finding the Fourth Proportional to 20,646.70, 28,494.43 and 11,573.59

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Solution

The fourth proportional to 20,646.70, 28,494.43 and 11,573.59 is: 15,972.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646.70 : 28,494.43 = 11,573.59 : x
  2. Step 2: Convert to fraction form
    20,646.70/28,494.43 = 11,573.59/x
  3. Step 3: Cross multiply
    20,646.70x = 28,494.43 × 11,573.59
  4. Step 4: Simplify right side
    20,646.70x = 329,782,972.81
  5. Step 5: Solve for x
    x = 329,782,972.81/20,646.70
  6. Step 6: Final answer
    x = 15,972.68

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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.