Home / 35,605.09-49,135.34-19,689.80

Finding the Fourth Proportional to 35,605.09, 49,135.34 and 19,689.80

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Solution

The fourth proportional to 35,605.09, 49,135.34 and 19,689.80 is: 27,172.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,605.09 : 49,135.34 = 19,689.80 : x
  2. Step 2: Convert to fraction form
    35,605.09/49,135.34 = 19,689.80/x
  3. Step 3: Cross multiply
    35,605.09x = 49,135.34 × 19,689.80
  4. Step 4: Simplify right side
    35,605.09x = 967,465,097.47
  5. Step 5: Solve for x
    x = 967,465,097.47/35,605.09
  6. Step 6: Final answer
    x = 27,172.10

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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.