Home / 35,855.72-53,709.60-21,019.58

Finding the Fourth Proportional to 35,855.72, 53,709.60 and 21,019.58

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Solution

The fourth proportional to 35,855.72, 53,709.60 and 21,019.58 is: 31,486.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,855.72 : 53,709.60 = 21,019.58 : x
  2. Step 2: Convert to fraction form
    35,855.72/53,709.60 = 21,019.58/x
  3. Step 3: Cross multiply
    35,855.72x = 53,709.60 × 21,019.58
  4. Step 4: Simplify right side
    35,855.72x = 1,128,953,233.97
  5. Step 5: Solve for x
    x = 1,128,953,233.97/35,855.72
  6. Step 6: Final answer
    x = 31,486.00

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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.