Home / 56,015.78-84,017-20,946.02

Finding the Fourth Proportional to 56,015.78, 84,017 and 20,946.02

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Solution

The fourth proportional to 56,015.78, 84,017 and 20,946.02 is: 31,416.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,015.78 : 84,017 = 20,946.02 : x
  2. Step 2: Convert to fraction form
    56,015.78/84,017 = 20,946.02/x
  3. Step 3: Cross multiply
    56,015.78x = 84,017 × 20,946.02
  4. Step 4: Simplify right side
    56,015.78x = 1,759,821,762.34
  5. Step 5: Solve for x
    x = 1,759,821,762.34/56,015.78
  6. Step 6: Final answer
    x = 31,416.54

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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.