Home / 28,864.64-43,295.60-9,144.32

Finding the Fourth Proportional to 28,864.64, 43,295.60 and 9,144.32

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Solution

The fourth proportional to 28,864.64, 43,295.60 and 9,144.32 is: 13,716.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,864.64 : 43,295.60 = 9,144.32 : x
  2. Step 2: Convert to fraction form
    28,864.64/43,295.60 = 9,144.32/x
  3. Step 3: Cross multiply
    28,864.64x = 43,295.60 × 9,144.32
  4. Step 4: Simplify right side
    28,864.64x = 395,908,820.99
  5. Step 5: Solve for x
    x = 395,908,820.99/28,864.64
  6. Step 6: Final answer
    x = 13,716.05

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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.