Home / 28,859.04-43,284.78-9,137.70

Finding the Fourth Proportional to 28,859.04, 43,284.78 and 9,137.70

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Solution

The fourth proportional to 28,859.04, 43,284.78 and 9,137.70 is: 13,705.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,859.04 : 43,284.78 = 9,137.70 : x
  2. Step 2: Convert to fraction form
    28,859.04/43,284.78 = 9,137.70/x
  3. Step 3: Cross multiply
    28,859.04x = 43,284.78 × 9,137.70
  4. Step 4: Simplify right side
    28,859.04x = 395,523,334.21
  5. Step 5: Solve for x
    x = 395,523,334.21/28,859.04
  6. Step 6: Final answer
    x = 13,705.35

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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.