Home / 30,430.27-41,980.80-19,092.07

Finding the Fourth Proportional to 30,430.27, 41,980.80 and 19,092.07

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Solution

The fourth proportional to 30,430.27, 41,980.80 and 19,092.07 is: 26,338.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,430.27 : 41,980.80 = 19,092.07 : x
  2. Step 2: Convert to fraction form
    30,430.27/41,980.80 = 19,092.07/x
  3. Step 3: Cross multiply
    30,430.27x = 41,980.80 × 19,092.07
  4. Step 4: Simplify right side
    30,430.27x = 801,500,372.26
  5. Step 5: Solve for x
    x = 801,500,372.26/30,430.27
  6. Step 6: Final answer
    x = 26,338.92

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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.