Home / 39,980.94-59,953.86-21,256.44

Finding the Fourth Proportional to 39,980.94, 59,953.86 and 21,256.44

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Solution

The fourth proportional to 39,980.94, 59,953.86 and 21,256.44 is: 31,875.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,980.94 : 59,953.86 = 21,256.44 : x
  2. Step 2: Convert to fraction form
    39,980.94/59,953.86 = 21,256.44/x
  3. Step 3: Cross multiply
    39,980.94x = 59,953.86 × 21,256.44
  4. Step 4: Simplify right side
    39,980.94x = 1,274,405,627.86
  5. Step 5: Solve for x
    x = 1,274,405,627.86/39,980.94
  6. Step 6: Final answer
    x = 31,875.33

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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.