Home / 30,857.80-42,583.92-16,710.70

Finding the Fourth Proportional to 30,857.80, 42,583.92 and 16,710.70

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Solution

The fourth proportional to 30,857.80, 42,583.92 and 16,710.70 is: 23,060.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,857.80 : 42,583.92 = 16,710.70 : x
  2. Step 2: Convert to fraction form
    30,857.80/42,583.92 = 16,710.70/x
  3. Step 3: Cross multiply
    30,857.80x = 42,583.92 × 16,710.70
  4. Step 4: Simplify right side
    30,857.80x = 711,607,111.94
  5. Step 5: Solve for x
    x = 711,607,111.94/30,857.80
  6. Step 6: Final answer
    x = 23,060.85

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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.