Home / 34,729.28-51,980.31-18,894.80

Finding the Fourth Proportional to 34,729.28, 51,980.31 and 18,894.80

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Solution

The fourth proportional to 34,729.28, 51,980.31 and 18,894.80 is: 28,280.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,729.28 : 51,980.31 = 18,894.80 : x
  2. Step 2: Convert to fraction form
    34,729.28/51,980.31 = 18,894.80/x
  3. Step 3: Cross multiply
    34,729.28x = 51,980.31 × 18,894.80
  4. Step 4: Simplify right side
    34,729.28x = 982,157,561.39
  5. Step 5: Solve for x
    x = 982,157,561.39/34,729.28
  6. Step 6: Final answer
    x = 28,280.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.