Home / 28,615.53-42,911.40-11,075.25

Finding the Fourth Proportional to 28,615.53, 42,911.40 and 11,075.25

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Solution

The fourth proportional to 28,615.53, 42,911.40 and 11,075.25 is: 16,608.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615.53 : 42,911.40 = 11,075.25 : x
  2. Step 2: Convert to fraction form
    28,615.53/42,911.40 = 11,075.25/x
  3. Step 3: Cross multiply
    28,615.53x = 42,911.40 × 11,075.25
  4. Step 4: Simplify right side
    28,615.53x = 475,254,482.85
  5. Step 5: Solve for x
    x = 475,254,482.85/28,615.53
  6. Step 6: Final answer
    x = 16,608.27

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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.