Home / 21,928.86-32,858.73-13,152.78

Finding the Fourth Proportional to 21,928.86, 32,858.73 and 13,152.78

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Solution

The fourth proportional to 21,928.86, 32,858.73 and 13,152.78 is: 19,708.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928.86 : 32,858.73 = 13,152.78 : x
  2. Step 2: Convert to fraction form
    21,928.86/32,858.73 = 13,152.78/x
  3. Step 3: Cross multiply
    21,928.86x = 32,858.73 × 13,152.78
  4. Step 4: Simplify right side
    21,928.86x = 432,183,646.77
  5. Step 5: Solve for x
    x = 432,183,646.77/21,928.86
  6. Step 6: Final answer
    x = 19,708.44

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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.