Home / 35,815.20-53,703.90-12,114.60

Finding the Fourth Proportional to 35,815.20, 53,703.90 and 12,114.60

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Solution

The fourth proportional to 35,815.20, 53,703.90 and 12,114.60 is: 18,165.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,815.20 : 53,703.90 = 12,114.60 : x
  2. Step 2: Convert to fraction form
    35,815.20/53,703.90 = 12,114.60/x
  3. Step 3: Cross multiply
    35,815.20x = 53,703.90 × 12,114.60
  4. Step 4: Simplify right side
    35,815.20x = 650,601,266.94
  5. Step 5: Solve for x
    x = 650,601,266.94/35,815.20
  6. Step 6: Final answer
    x = 18,165.51

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1.5x scale

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.