Home / 28,756.28-43,140.27-12,116.32

Finding the Fourth Proportional to 28,756.28, 43,140.27 and 12,116.32

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Solution

The fourth proportional to 28,756.28, 43,140.27 and 12,116.32 is: 18,176.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.28 : 43,140.27 = 12,116.32 : x
  2. Step 2: Convert to fraction form
    28,756.28/43,140.27 = 12,116.32/x
  3. Step 3: Cross multiply
    28,756.28x = 43,140.27 × 12,116.32
  4. Step 4: Simplify right side
    28,756.28x = 522,701,039.92
  5. Step 5: Solve for x
    x = 522,701,039.92/28,756.28
  6. Step 6: Final answer
    x = 18,176.94

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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.