Home / 30,855.83-42,581.45-17,243.27

Finding the Fourth Proportional to 30,855.83, 42,581.45 and 17,243.27

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Solution

The fourth proportional to 30,855.83, 42,581.45 and 17,243.27 is: 23,795.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,855.83 : 42,581.45 = 17,243.27 : x
  2. Step 2: Convert to fraction form
    30,855.83/42,581.45 = 17,243.27/x
  3. Step 3: Cross multiply
    30,855.83x = 42,581.45 × 17,243.27
  4. Step 4: Simplify right side
    30,855.83x = 734,243,140.22
  5. Step 5: Solve for x
    x = 734,243,140.22/30,855.83
  6. Step 6: Final answer
    x = 23,795.93

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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.