Home / 35,515.70-49,020.04-20,417.12

Finding the Fourth Proportional to 35,515.70, 49,020.04 and 20,417.12

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Solution

The fourth proportional to 35,515.70, 49,020.04 and 20,417.12 is: 28,180.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,515.70 : 49,020.04 = 20,417.12 : x
  2. Step 2: Convert to fraction form
    35,515.70/49,020.04 = 20,417.12/x
  3. Step 3: Cross multiply
    35,515.70x = 49,020.04 × 20,417.12
  4. Step 4: Simplify right side
    35,515.70x = 1,000,848,039.08
  5. Step 5: Solve for x
    x = 1,000,848,039.08/35,515.70
  6. Step 6: Final answer
    x = 28,180.44

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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.