Home / 30,448.45-42,018.14-17,020.95

Finding the Fourth Proportional to 30,448.45, 42,018.14 and 17,020.95

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Solution

The fourth proportional to 30,448.45, 42,018.14 and 17,020.95 is: 23,488.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,448.45 : 42,018.14 = 17,020.95 : x
  2. Step 2: Convert to fraction form
    30,448.45/42,018.14 = 17,020.95/x
  3. Step 3: Cross multiply
    30,448.45x = 42,018.14 × 17,020.95
  4. Step 4: Simplify right side
    30,448.45x = 715,188,762.29
  5. Step 5: Solve for x
    x = 715,188,762.29/30,448.45
  6. Step 6: Final answer
    x = 23,488.51

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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.