Home / 15,845.37-21,895.53-15,076.77

Finding the Fourth Proportional to 15,845.37, 21,895.53 and 15,076.77

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Solution

The fourth proportional to 15,845.37, 21,895.53 and 15,076.77 is: 20,833.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,845.37 : 21,895.53 = 15,076.77 : x
  2. Step 2: Convert to fraction form
    15,845.37/21,895.53 = 15,076.77/x
  3. Step 3: Cross multiply
    15,845.37x = 21,895.53 × 15,076.77
  4. Step 4: Simplify right side
    15,845.37x = 330,113,869.84
  5. Step 5: Solve for x
    x = 330,113,869.84/15,845.37
  6. Step 6: Final answer
    x = 20,833.46

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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.