Home / 29,415.04-44,120.40-8,640.16

Finding the Fourth Proportional to 29,415.04, 44,120.40 and 8,640.16

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Solution

The fourth proportional to 29,415.04, 44,120.40 and 8,640.16 is: 12,959.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,415.04 : 44,120.40 = 8,640.16 : x
  2. Step 2: Convert to fraction form
    29,415.04/44,120.40 = 8,640.16/x
  3. Step 3: Cross multiply
    29,415.04x = 44,120.40 × 8,640.16
  4. Step 4: Simplify right side
    29,415.04x = 381,207,315.26
  5. Step 5: Solve for x
    x = 381,207,315.26/29,415.04
  6. Step 6: Final answer
    x = 12,959.61

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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.