Home / 30,902.50-42,645.45-16,755.34

Finding the Fourth Proportional to 30,902.50, 42,645.45 and 16,755.34

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Solution

The fourth proportional to 30,902.50, 42,645.45 and 16,755.34 is: 23,122.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,902.50 : 42,645.45 = 16,755.34 : x
  2. Step 2: Convert to fraction form
    30,902.50/42,645.45 = 16,755.34/x
  3. Step 3: Cross multiply
    30,902.50x = 42,645.45 × 16,755.34
  4. Step 4: Simplify right side
    30,902.50x = 714,539,014.20
  5. Step 5: Solve for x
    x = 714,539,014.20/30,902.50
  6. Step 6: Final answer
    x = 23,122.37

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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.