Home / 35,515.14-49,013.10-20,202.58

Finding the Fourth Proportional to 35,515.14, 49,013.10 and 20,202.58

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Solution

The fourth proportional to 35,515.14, 49,013.10 and 20,202.58 is: 27,880.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,515.14 : 49,013.10 = 20,202.58 : x
  2. Step 2: Convert to fraction form
    35,515.14/49,013.10 = 20,202.58/x
  3. Step 3: Cross multiply
    35,515.14x = 49,013.10 × 20,202.58
  4. Step 4: Simplify right side
    35,515.14x = 990,191,073.80
  5. Step 5: Solve for x
    x = 990,191,073.80/35,515.14
  6. Step 6: Final answer
    x = 27,880.82

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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.