Home / 30,806.09-42,510.63-17,376.54

Finding the Fourth Proportional to 30,806.09, 42,510.63 and 17,376.54

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Solution

The fourth proportional to 30,806.09, 42,510.63 and 17,376.54 is: 23,978.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,806.09 : 42,510.63 = 17,376.54 : x
  2. Step 2: Convert to fraction form
    30,806.09/42,510.63 = 17,376.54/x
  3. Step 3: Cross multiply
    30,806.09x = 42,510.63 × 17,376.54
  4. Step 4: Simplify right side
    30,806.09x = 738,687,662.62
  5. Step 5: Solve for x
    x = 738,687,662.62/30,806.09
  6. Step 6: Final answer
    x = 23,978.63

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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.