Home / 35,350.78-53,015.23-11,971.75

Finding the Fourth Proportional to 35,350.78, 53,015.23 and 11,971.75

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Solution

The fourth proportional to 35,350.78, 53,015.23 and 11,971.75 is: 17,953.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,350.78 : 53,015.23 = 11,971.75 : x
  2. Step 2: Convert to fraction form
    35,350.78/53,015.23 = 11,971.75/x
  3. Step 3: Cross multiply
    35,350.78x = 53,015.23 × 11,971.75
  4. Step 4: Simplify right side
    35,350.78x = 634,685,079.75
  5. Step 5: Solve for x
    x = 634,685,079.75/35,350.78
  6. Step 6: Final answer
    x = 17,953.92

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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.