Home / 19,845.33-29,770.63-10,485.72

Finding the Fourth Proportional to 19,845.33, 29,770.63 and 10,485.72

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Solution

The fourth proportional to 19,845.33, 29,770.63 and 10,485.72 is: 15,729.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,845.33 : 29,770.63 = 10,485.72 : x
  2. Step 2: Convert to fraction form
    19,845.33/29,770.63 = 10,485.72/x
  3. Step 3: Cross multiply
    19,845.33x = 29,770.63 × 10,485.72
  4. Step 4: Simplify right side
    19,845.33x = 312,166,490.40
  5. Step 5: Solve for x
    x = 312,166,490.40/19,845.33
  6. Step 6: Final answer
    x = 15,729.97

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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.