Home / 21,075.84-29,084.28-11,645.04

Finding the Fourth Proportional to 21,075.84, 29,084.28 and 11,645.04

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Solution

The fourth proportional to 21,075.84, 29,084.28 and 11,645.04 is: 16,069.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,075.84 : 29,084.28 = 11,645.04 : x
  2. Step 2: Convert to fraction form
    21,075.84/29,084.28 = 11,645.04/x
  3. Step 3: Cross multiply
    21,075.84x = 29,084.28 × 11,645.04
  4. Step 4: Simplify right side
    21,075.84x = 338,687,603.97
  5. Step 5: Solve for x
    x = 338,687,603.97/21,075.84
  6. Step 6: Final answer
    x = 16,069.95

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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.