Home / 35,863.60-53,771.10-18,999.40

Finding the Fourth Proportional to 35,863.60, 53,771.10 and 18,999.40

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Solution

The fourth proportional to 35,863.60, 53,771.10 and 18,999.40 is: 28,486.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,863.60 : 53,771.10 = 18,999.40 : x
  2. Step 2: Convert to fraction form
    35,863.60/53,771.10 = 18,999.40/x
  3. Step 3: Cross multiply
    35,863.60x = 53,771.10 × 18,999.40
  4. Step 4: Simplify right side
    35,863.60x = 1,021,618,637.34
  5. Step 5: Solve for x
    x = 1,021,618,637.34/35,863.60
  6. Step 6: Final answer
    x = 28,486.23

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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.