Home / 30,449.16-42,019.68-17,020.41

Finding the Fourth Proportional to 30,449.16, 42,019.68 and 17,020.41

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Solution

The fourth proportional to 30,449.16, 42,019.68 and 17,020.41 is: 23,488.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,449.16 : 42,019.68 = 17,020.41 : x
  2. Step 2: Convert to fraction form
    30,449.16/42,019.68 = 17,020.41/x
  3. Step 3: Cross multiply
    30,449.16x = 42,019.68 × 17,020.41
  4. Step 4: Simplify right side
    30,449.16x = 715,192,181.67
  5. Step 5: Solve for x
    x = 715,192,181.67/30,449.16
  6. Step 6: Final answer
    x = 23,488.08

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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.