Home / 30,731.07-42,409.68-17,302.82

Finding the Fourth Proportional to 30,731.07, 42,409.68 and 17,302.82

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Solution

The fourth proportional to 30,731.07, 42,409.68 and 17,302.82 is: 23,878.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,731.07 : 42,409.68 = 17,302.82 : x
  2. Step 2: Convert to fraction form
    30,731.07/42,409.68 = 17,302.82/x
  3. Step 3: Cross multiply
    30,731.07x = 42,409.68 × 17,302.82
  4. Step 4: Simplify right side
    30,731.07x = 733,806,782.36
  5. Step 5: Solve for x
    x = 733,806,782.36/30,731.07
  6. Step 6: Final answer
    x = 23,878.33

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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.