Home / 30,954.98-42,720.52-17,528.60

Finding the Fourth Proportional to 30,954.98, 42,720.52 and 17,528.60

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Solution

The fourth proportional to 30,954.98, 42,720.52 and 17,528.60 is: 24,190.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,954.98 : 42,720.52 = 17,528.60 : x
  2. Step 2: Convert to fraction form
    30,954.98/42,720.52 = 17,528.60/x
  3. Step 3: Cross multiply
    30,954.98x = 42,720.52 × 17,528.60
  4. Step 4: Simplify right side
    30,954.98x = 748,830,906.87
  5. Step 5: Solve for x
    x = 748,830,906.87/30,954.98
  6. Step 6: Final answer
    x = 24,190.97

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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.