Home / 19,762.55-29,643.82-8,075.75

Finding the Fourth Proportional to 19,762.55, 29,643.82 and 8,075.75

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Solution

The fourth proportional to 19,762.55, 29,643.82 and 8,075.75 is: 12,113.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,762.55 : 29,643.82 = 8,075.75 : x
  2. Step 2: Convert to fraction form
    19,762.55/29,643.82 = 8,075.75/x
  3. Step 3: Cross multiply
    19,762.55x = 29,643.82 × 8,075.75
  4. Step 4: Simplify right side
    19,762.55x = 239,396,038.99
  5. Step 5: Solve for x
    x = 239,396,038.99/19,762.55
  6. Step 6: Final answer
    x = 12,113.62

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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.