Home / 28,075.41-42,135.12-19,586.71

Finding the Fourth Proportional to 28,075.41, 42,135.12 and 19,586.71

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Solution

The fourth proportional to 28,075.41, 42,135.12 and 19,586.71 is: 29,395.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075.41 : 42,135.12 = 19,586.71 : x
  2. Step 2: Convert to fraction form
    28,075.41/42,135.12 = 19,586.71/x
  3. Step 3: Cross multiply
    28,075.41x = 42,135.12 × 19,586.71
  4. Step 4: Simplify right side
    28,075.41x = 825,288,376.26
  5. Step 5: Solve for x
    x = 825,288,376.26/28,075.41
  6. Step 6: Final answer
    x = 29,395.42

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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.