Home / 20,075.04-27,705.14-11,123.39

Finding the Fourth Proportional to 20,075.04, 27,705.14 and 11,123.39

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Solution

The fourth proportional to 20,075.04, 27,705.14 and 11,123.39 is: 15,351.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.04 : 27,705.14 = 11,123.39 : x
  2. Step 2: Convert to fraction form
    20,075.04/27,705.14 = 11,123.39/x
  3. Step 3: Cross multiply
    20,075.04x = 27,705.14 × 11,123.39
  4. Step 4: Simplify right side
    20,075.04x = 308,175,132.58
  5. Step 5: Solve for x
    x = 308,175,132.58/20,075.04
  6. Step 6: Final answer
    x = 15,351.16

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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.