Home / 28,722.64-43,088.28-8,998.60

Finding the Fourth Proportional to 28,722.64, 43,088.28 and 8,998.60

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Solution

The fourth proportional to 28,722.64, 43,088.28 and 8,998.60 is: 13,499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722.64 : 43,088.28 = 8,998.60 : x
  2. Step 2: Convert to fraction form
    28,722.64/43,088.28 = 8,998.60/x
  3. Step 3: Cross multiply
    28,722.64x = 43,088.28 × 8,998.60
  4. Step 4: Simplify right side
    28,722.64x = 387,734,196.41
  5. Step 5: Solve for x
    x = 387,734,196.41/28,722.64
  6. Step 6: Final answer
    x = 13,499.25

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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.