Home / 30,698.93-42,350.75-18,760.04

Finding the Fourth Proportional to 30,698.93, 42,350.75 and 18,760.04

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Solution

The fourth proportional to 30,698.93, 42,350.75 and 18,760.04 is: 25,880.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,698.93 : 42,350.75 = 18,760.04 : x
  2. Step 2: Convert to fraction form
    30,698.93/42,350.75 = 18,760.04/x
  3. Step 3: Cross multiply
    30,698.93x = 42,350.75 × 18,760.04
  4. Step 4: Simplify right side
    30,698.93x = 794,501,687.64
  5. Step 5: Solve for x
    x = 794,501,687.64/30,698.93
  6. Step 6: Final answer
    x = 25,880.43

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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.