Home / 30,230.49-41,715.21-28,001.37

Finding the Fourth Proportional to 30,230.49, 41,715.21 and 28,001.37

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Solution

The fourth proportional to 30,230.49, 41,715.21 and 28,001.37 is: 38,639.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,230.49 : 41,715.21 = 28,001.37 : x
  2. Step 2: Convert to fraction form
    30,230.49/41,715.21 = 28,001.37/x
  3. Step 3: Cross multiply
    30,230.49x = 41,715.21 × 28,001.37
  4. Step 4: Simplify right side
    30,230.49x = 1,168,083,029.84
  5. Step 5: Solve for x
    x = 1,168,083,029.84/30,230.49
  6. Step 6: Final answer
    x = 38,639.24

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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.