Home / 35,864.10-53,771.85-18,999.90

Finding the Fourth Proportional to 35,864.10, 53,771.85 and 18,999.90

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Solution

The fourth proportional to 35,864.10, 53,771.85 and 18,999.90 is: 28,486.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,864.10 : 53,771.85 = 18,999.90 : x
  2. Step 2: Convert to fraction form
    35,864.10/53,771.85 = 18,999.90/x
  3. Step 3: Cross multiply
    35,864.10x = 53,771.85 × 18,999.90
  4. Step 4: Simplify right side
    35,864.10x = 1,021,659,772.82
  5. Step 5: Solve for x
    x = 1,021,659,772.82/35,864.10
  6. Step 6: Final answer
    x = 28,486.98

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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.