Home / 21,043.55-31,559.04-17,336.58

Finding the Fourth Proportional to 21,043.55, 31,559.04 and 17,336.58

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Solution

The fourth proportional to 21,043.55, 31,559.04 and 17,336.58 is: 25,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,043.55 : 31,559.04 = 17,336.58 : x
  2. Step 2: Convert to fraction form
    21,043.55/31,559.04 = 17,336.58/x
  3. Step 3: Cross multiply
    21,043.55x = 31,559.04 × 17,336.58
  4. Step 4: Simplify right side
    21,043.55x = 547,125,821.68
  5. Step 5: Solve for x
    x = 547,125,821.68/21,043.55
  6. Step 6: Final answer
    x = 25,999.70

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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.