Home / 30,721.62-46,085.00-8,235.51

Finding the Fourth Proportional to 30,721.62, 46,085.00 and 8,235.51

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Solution

The fourth proportional to 30,721.62, 46,085.00 and 8,235.51 is: 12,353.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,721.62 : 46,085.00 = 8,235.51 : x
  2. Step 2: Convert to fraction form
    30,721.62/46,085.00 = 8,235.51/x
  3. Step 3: Cross multiply
    30,721.62x = 46,085.00 × 8,235.51
  4. Step 4: Simplify right side
    30,721.62x = 379,533,264.35
  5. Step 5: Solve for x
    x = 379,533,264.35/30,721.62
  6. Step 6: Final answer
    x = 12,353.95

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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.