Home / 28,476.05-42,718.16-8,756.27

Finding the Fourth Proportional to 28,476.05, 42,718.16 and 8,756.27

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Solution

The fourth proportional to 28,476.05, 42,718.16 and 8,756.27 is: 13,135.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,476.05 : 42,718.16 = 8,756.27 : x
  2. Step 2: Convert to fraction form
    28,476.05/42,718.16 = 8,756.27/x
  3. Step 3: Cross multiply
    28,476.05x = 42,718.16 × 8,756.27
  4. Step 4: Simplify right side
    28,476.05x = 374,051,485.49
  5. Step 5: Solve for x
    x = 374,051,485.49/28,476.05
  6. Step 6: Final answer
    x = 13,135.65

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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.