Home / 30,448.95-42,018.83-17,021.46

Finding the Fourth Proportional to 30,448.95, 42,018.83 and 17,021.46

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Solution

The fourth proportional to 30,448.95, 42,018.83 and 17,021.46 is: 23,489.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,448.95 : 42,018.83 = 17,021.46 : x
  2. Step 2: Convert to fraction form
    30,448.95/42,018.83 = 17,021.46/x
  3. Step 3: Cross multiply
    30,448.95x = 42,018.83 × 17,021.46
  4. Step 4: Simplify right side
    30,448.95x = 715,221,538.89
  5. Step 5: Solve for x
    x = 715,221,538.89/30,448.95
  6. Step 6: Final answer
    x = 23,489.20

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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.