Home / 30,440.89-42,007.61-17,012.25

Finding the Fourth Proportional to 30,440.89, 42,007.61 and 17,012.25

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Solution

The fourth proportional to 30,440.89, 42,007.61 and 17,012.25 is: 23,476.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,440.89 : 42,007.61 = 17,012.25 : x
  2. Step 2: Convert to fraction form
    30,440.89/42,007.61 = 17,012.25/x
  3. Step 3: Cross multiply
    30,440.89x = 42,007.61 × 17,012.25
  4. Step 4: Simplify right side
    30,440.89x = 714,644,005.75
  5. Step 5: Solve for x
    x = 714,644,005.75/30,440.89
  6. Step 6: Final answer
    x = 23,476.45

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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.