Home / 43,021.33-64,529.70-13,435.78

Finding the Fourth Proportional to 43,021.33, 64,529.70 and 13,435.78

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Solution

The fourth proportional to 43,021.33, 64,529.70 and 13,435.78 is: 20,152.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,021.33 : 64,529.70 = 13,435.78 : x
  2. Step 2: Convert to fraction form
    43,021.33/64,529.70 = 13,435.78/x
  3. Step 3: Cross multiply
    43,021.33x = 64,529.70 × 13,435.78
  4. Step 4: Simplify right side
    43,021.33x = 867,006,852.67
  5. Step 5: Solve for x
    x = 867,006,852.67/43,021.33
  6. Step 6: Final answer
    x = 20,152.95

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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.