Home / 21,075.48-29,084.40-11,644.44

Finding the Fourth Proportional to 21,075.48, 29,084.40 and 11,644.44

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Solution

The fourth proportional to 21,075.48, 29,084.40 and 11,644.44 is: 16,069.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,075.48 : 29,084.40 = 11,644.44 : x
  2. Step 2: Convert to fraction form
    21,075.48/29,084.40 = 11,644.44/x
  3. Step 3: Cross multiply
    21,075.48x = 29,084.40 × 11,644.44
  4. Step 4: Simplify right side
    21,075.48x = 338,671,550.74
  5. Step 5: Solve for x
    x = 338,671,550.74/21,075.48
  6. Step 6: Final answer
    x = 16,069.46

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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.