Home / 30,770.34-42,463.10-16,623.20

Finding the Fourth Proportional to 30,770.34, 42,463.10 and 16,623.20

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Solution

The fourth proportional to 30,770.34, 42,463.10 and 16,623.20 is: 22,940.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,770.34 : 42,463.10 = 16,623.20 : x
  2. Step 2: Convert to fraction form
    30,770.34/42,463.10 = 16,623.20/x
  3. Step 3: Cross multiply
    30,770.34x = 42,463.10 × 16,623.20
  4. Step 4: Simplify right side
    30,770.34x = 705,872,603.92
  5. Step 5: Solve for x
    x = 705,872,603.92/30,770.34
  6. Step 6: Final answer
    x = 22,940.03

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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.