Home / 20,232.95-27,909.44-15,749.60

Finding the Fourth Proportional to 20,232.95, 27,909.44 and 15,749.60

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Solution

The fourth proportional to 20,232.95, 27,909.44 and 15,749.60 is: 21,725.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232.95 : 27,909.44 = 15,749.60 : x
  2. Step 2: Convert to fraction form
    20,232.95/27,909.44 = 15,749.60/x
  3. Step 3: Cross multiply
    20,232.95x = 27,909.44 × 15,749.60
  4. Step 4: Simplify right side
    20,232.95x = 439,562,516.22
  5. Step 5: Solve for x
    x = 439,562,516.22/20,232.95
  6. Step 6: Final answer
    x = 21,725.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.