Home / 30,858.11-42,583.68-16,710.78

Finding the Fourth Proportional to 30,858.11, 42,583.68 and 16,710.78

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Solution

The fourth proportional to 30,858.11, 42,583.68 and 16,710.78 is: 23,060.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,858.11 : 42,583.68 = 16,710.78 : x
  2. Step 2: Convert to fraction form
    30,858.11/42,583.68 = 16,710.78/x
  3. Step 3: Cross multiply
    30,858.11x = 42,583.68 × 16,710.78
  4. Step 4: Simplify right side
    30,858.11x = 711,606,508.07
  5. Step 5: Solve for x
    x = 711,606,508.07/30,858.11
  6. Step 6: Final answer
    x = 23,060.60

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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.