Home / 35,855.12-49,479.72-19,938.80

Finding the Fourth Proportional to 35,855.12, 49,479.72 and 19,938.80

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Solution

The fourth proportional to 35,855.12, 49,479.72 and 19,938.80 is: 27,515.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,855.12 : 49,479.72 = 19,938.80 : x
  2. Step 2: Convert to fraction form
    35,855.12/49,479.72 = 19,938.80/x
  3. Step 3: Cross multiply
    35,855.12x = 49,479.72 × 19,938.80
  4. Step 4: Simplify right side
    35,855.12x = 986,566,241.14
  5. Step 5: Solve for x
    x = 986,566,241.14/35,855.12
  6. Step 6: Final answer
    x = 27,515.35

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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.