Home / 36,990.84-51,041.40-21,075.60

Finding the Fourth Proportional to 36,990.84, 51,041.40 and 21,075.60

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Solution

The fourth proportional to 36,990.84, 51,041.40 and 21,075.60 is: 29,080.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,990.84 : 51,041.40 = 21,075.60 : x
  2. Step 2: Convert to fraction form
    36,990.84/51,041.40 = 21,075.60/x
  3. Step 3: Cross multiply
    36,990.84x = 51,041.40 × 21,075.60
  4. Step 4: Simplify right side
    36,990.84x = 1,075,728,129.84
  5. Step 5: Solve for x
    x = 1,075,728,129.84/36,990.84
  6. Step 6: Final answer
    x = 29,080.93

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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.