Home / 35,815.02-53,689.12-12,105.98

Finding the Fourth Proportional to 35,815.02, 53,689.12 and 12,105.98

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Solution

The fourth proportional to 35,815.02, 53,689.12 and 12,105.98 is: 18,147.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,815.02 : 53,689.12 = 12,105.98 : x
  2. Step 2: Convert to fraction form
    35,815.02/53,689.12 = 12,105.98/x
  3. Step 3: Cross multiply
    35,815.02x = 53,689.12 × 12,105.98
  4. Step 4: Simplify right side
    35,815.02x = 649,959,412.94
  5. Step 5: Solve for x
    x = 649,959,412.94/35,815.02
  6. Step 6: Final answer
    x = 18,147.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.