Home / 30,857.20-42,583.02-16,710.05

Finding the Fourth Proportional to 30,857.20, 42,583.02 and 16,710.05

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Solution

The fourth proportional to 30,857.20, 42,583.02 and 16,710.05 is: 23,059.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,857.20 : 42,583.02 = 16,710.05 : x
  2. Step 2: Convert to fraction form
    30,857.20/42,583.02 = 16,710.05/x
  3. Step 3: Cross multiply
    30,857.20x = 42,583.02 × 16,710.05
  4. Step 4: Simplify right side
    30,857.20x = 711,564,393.35
  5. Step 5: Solve for x
    x = 711,564,393.35/30,857.20
  6. Step 6: Final answer
    x = 23,059.91

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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.