Home / 35,353.95-53,027.28-11,979.78

Finding the Fourth Proportional to 35,353.95, 53,027.28 and 11,979.78

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Solution

The fourth proportional to 35,353.95, 53,027.28 and 11,979.78 is: 17,968.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,353.95 : 53,027.28 = 11,979.78 : x
  2. Step 2: Convert to fraction form
    35,353.95/53,027.28 = 11,979.78/x
  3. Step 3: Cross multiply
    35,353.95x = 53,027.28 × 11,979.78
  4. Step 4: Simplify right side
    35,353.95x = 635,255,148.40
  5. Step 5: Solve for x
    x = 635,255,148.40/35,353.95
  6. Step 6: Final answer
    x = 17,968.43

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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.