Home / 28,573.09-42,860.86-8,852.02

Finding the Fourth Proportional to 28,573.09, 42,860.86 and 8,852.02

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Solution

The fourth proportional to 28,573.09, 42,860.86 and 8,852.02 is: 13,278.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.09 : 42,860.86 = 8,852.02 : x
  2. Step 2: Convert to fraction form
    28,573.09/42,860.86 = 8,852.02/x
  3. Step 3: Cross multiply
    28,573.09x = 42,860.86 × 8,852.02
  4. Step 4: Simplify right side
    28,573.09x = 379,405,060.66
  5. Step 5: Solve for x
    x = 379,405,060.66/28,573.09
  6. Step 6: Final answer
    x = 13,278.41

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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.