Home / 30,456.95-42,030.89-17,028.94

Finding the Fourth Proportional to 30,456.95, 42,030.89 and 17,028.94

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Solution

The fourth proportional to 30,456.95, 42,030.89 and 17,028.94 is: 23,500.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,456.95 : 42,030.89 = 17,028.94 : x
  2. Step 2: Convert to fraction form
    30,456.95/42,030.89 = 17,028.94/x
  3. Step 3: Cross multiply
    30,456.95x = 42,030.89 × 17,028.94
  4. Step 4: Simplify right side
    30,456.95x = 715,741,313.73
  5. Step 5: Solve for x
    x = 715,741,313.73/30,456.95
  6. Step 6: Final answer
    x = 23,500.10

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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.