Home / 30,435.70-45,588.96-19,868.38

Finding the Fourth Proportional to 30,435.70, 45,588.96 and 19,868.38

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Solution

The fourth proportional to 30,435.70, 45,588.96 and 19,868.38 is: 29,760.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,435.70 : 45,588.96 = 19,868.38 : x
  2. Step 2: Convert to fraction form
    30,435.70/45,588.96 = 19,868.38/x
  3. Step 3: Cross multiply
    30,435.70x = 45,588.96 × 19,868.38
  4. Step 4: Simplify right side
    30,435.70x = 905,778,781.08
  5. Step 5: Solve for x
    x = 905,778,781.08/30,435.70
  6. Step 6: Final answer
    x = 29,760.41

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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.