Home / 35,857.12-49,482.48-19,940.80

Finding the Fourth Proportional to 35,857.12, 49,482.48 and 19,940.80

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Solution

The fourth proportional to 35,857.12, 49,482.48 and 19,940.80 is: 27,518.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,857.12 : 49,482.48 = 19,940.80 : x
  2. Step 2: Convert to fraction form
    35,857.12/49,482.48 = 19,940.80/x
  3. Step 3: Cross multiply
    35,857.12x = 49,482.48 × 19,940.80
  4. Step 4: Simplify right side
    35,857.12x = 986,720,237.18
  5. Step 5: Solve for x
    x = 986,720,237.18/35,857.12
  6. Step 6: Final answer
    x = 27,518.11

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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.