Home / 30,519.65-42,119.63-17,092.15

Finding the Fourth Proportional to 30,519.65, 42,119.63 and 17,092.15

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Solution

The fourth proportional to 30,519.65, 42,119.63 and 17,092.15 is: 23,588.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,519.65 : 42,119.63 = 17,092.15 : x
  2. Step 2: Convert to fraction form
    30,519.65/42,119.63 = 17,092.15/x
  3. Step 3: Cross multiply
    30,519.65x = 42,119.63 × 17,092.15
  4. Step 4: Simplify right side
    30,519.65x = 719,915,033.90
  5. Step 5: Solve for x
    x = 719,915,033.90/30,519.65
  6. Step 6: Final answer
    x = 23,588.57

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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.