Home / 35,690.24-53,522.40-11,990.72

Finding the Fourth Proportional to 35,690.24, 53,522.40 and 11,990.72

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Solution

The fourth proportional to 35,690.24, 53,522.40 and 11,990.72 is: 17,981.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,690.24 : 53,522.40 = 11,990.72 : x
  2. Step 2: Convert to fraction form
    35,690.24/53,522.40 = 11,990.72/x
  3. Step 3: Cross multiply
    35,690.24x = 53,522.40 × 11,990.72
  4. Step 4: Simplify right side
    35,690.24x = 641,772,112.13
  5. Step 5: Solve for x
    x = 641,772,112.13/35,690.24
  6. Step 6: Final answer
    x = 17,981.73

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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.