Home / 30,770.57-42,463.40-16,623.41

Finding the Fourth Proportional to 30,770.57, 42,463.40 and 16,623.41

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Solution

The fourth proportional to 30,770.57, 42,463.40 and 16,623.41 is: 22,940.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,770.57 : 42,463.40 = 16,623.41 : x
  2. Step 2: Convert to fraction form
    30,770.57/42,463.40 = 16,623.41/x
  3. Step 3: Cross multiply
    30,770.57x = 42,463.40 × 16,623.41
  4. Step 4: Simplify right side
    30,770.57x = 705,886,425.08
  5. Step 5: Solve for x
    x = 705,886,425.08/30,770.57
  6. Step 6: Final answer
    x = 22,940.31

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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.