Home / 28,529.84-42,801.24-15,381.92

Finding the Fourth Proportional to 28,529.84, 42,801.24 and 15,381.92

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Solution

The fourth proportional to 28,529.84, 42,801.24 and 15,381.92 is: 23,076.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,529.84 : 42,801.24 = 15,381.92 : x
  2. Step 2: Convert to fraction form
    28,529.84/42,801.24 = 15,381.92/x
  3. Step 3: Cross multiply
    28,529.84x = 42,801.24 × 15,381.92
  4. Step 4: Simplify right side
    28,529.84x = 658,365,035.57
  5. Step 5: Solve for x
    x = 658,365,035.57/28,529.84
  6. Step 6: Final answer
    x = 23,076.37

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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.