Home / 28,829.16-43,212.15-11,279.70

Finding the Fourth Proportional to 28,829.16, 43,212.15 and 11,279.70

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Solution

The fourth proportional to 28,829.16, 43,212.15 and 11,279.70 is: 16,907.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,829.16 : 43,212.15 = 11,279.70 : x
  2. Step 2: Convert to fraction form
    28,829.16/43,212.15 = 11,279.70/x
  3. Step 3: Cross multiply
    28,829.16x = 43,212.15 × 11,279.70
  4. Step 4: Simplify right side
    28,829.16x = 487,420,088.36
  5. Step 5: Solve for x
    x = 487,420,088.36/28,829.16
  6. Step 6: Final answer
    x = 16,907.19

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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.