Home / 30,857.44-42,583.20-16,710.40

Finding the Fourth Proportional to 30,857.44, 42,583.20 and 16,710.40

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Solution

The fourth proportional to 30,857.44, 42,583.20 and 16,710.40 is: 23,060.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,857.44 : 42,583.20 = 16,710.40 : x
  2. Step 2: Convert to fraction form
    30,857.44/42,583.20 = 16,710.40/x
  3. Step 3: Cross multiply
    30,857.44x = 42,583.20 × 16,710.40
  4. Step 4: Simplify right side
    30,857.44x = 711,582,305.28
  5. Step 5: Solve for x
    x = 711,582,305.28/30,857.44
  6. Step 6: Final answer
    x = 23,060.32

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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.