Home / 28,075.50-42,120.54-10,550.34

Finding the Fourth Proportional to 28,075.50, 42,120.54 and 10,550.34

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Solution

The fourth proportional to 28,075.50, 42,120.54 and 10,550.34 is: 15,828.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075.50 : 42,120.54 = 10,550.34 : x
  2. Step 2: Convert to fraction form
    28,075.50/42,120.54 = 10,550.34/x
  3. Step 3: Cross multiply
    28,075.50x = 42,120.54 × 10,550.34
  4. Step 4: Simplify right side
    28,075.50x = 444,386,017.98
  5. Step 5: Solve for x
    x = 444,386,017.98/28,075.50
  6. Step 6: Final answer
    x = 15,828.25

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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.