Home / 21,573.53-32,132.37-20,613.77

Finding the Fourth Proportional to 21,573.53, 32,132.37 and 20,613.77

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Solution

The fourth proportional to 21,573.53, 32,132.37 and 20,613.77 is: 30,702.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,573.53 : 32,132.37 = 20,613.77 : x
  2. Step 2: Convert to fraction form
    21,573.53/32,132.37 = 20,613.77/x
  3. Step 3: Cross multiply
    21,573.53x = 32,132.37 × 20,613.77
  4. Step 4: Simplify right side
    21,573.53x = 662,369,284.73
  5. Step 5: Solve for x
    x = 662,369,284.73/21,573.53
  6. Step 6: Final answer
    x = 30,702.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.