Home / 28,075.20-42,110.37-11,436.99

Finding the Fourth Proportional to 28,075.20, 42,110.37 and 11,436.99

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Solution

The fourth proportional to 28,075.20, 42,110.37 and 11,436.99 is: 17,154.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075.20 : 42,110.37 = 11,436.99 : x
  2. Step 2: Convert to fraction form
    28,075.20/42,110.37 = 11,436.99/x
  3. Step 3: Cross multiply
    28,075.20x = 42,110.37 × 11,436.99
  4. Step 4: Simplify right side
    28,075.20x = 481,615,880.59
  5. Step 5: Solve for x
    x = 481,615,880.59/28,075.20
  6. Step 6: Final answer
    x = 17,154.50

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1.5x scale

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.