Home / 35,120.10-48,461.76-20,780.37

Finding the Fourth Proportional to 35,120.10, 48,461.76 and 20,780.37

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Solution

The fourth proportional to 35,120.10, 48,461.76 and 20,780.37 is: 28,674.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,120.10 : 48,461.76 = 20,780.37 : x
  2. Step 2: Convert to fraction form
    35,120.10/48,461.76 = 20,780.37/x
  3. Step 3: Cross multiply
    35,120.10x = 48,461.76 × 20,780.37
  4. Step 4: Simplify right side
    35,120.10x = 1,007,053,303.65
  5. Step 5: Solve for x
    x = 1,007,053,303.65/35,120.10
  6. Step 6: Final answer
    x = 28,674.56

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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.