Home / 28,489.83-42,740.45-8,767.64

Finding the Fourth Proportional to 28,489.83, 42,740.45 and 8,767.64

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Solution

The fourth proportional to 28,489.83, 42,740.45 and 8,767.64 is: 13,153.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,489.83 : 42,740.45 = 8,767.64 : x
  2. Step 2: Convert to fraction form
    28,489.83/42,740.45 = 8,767.64/x
  3. Step 3: Cross multiply
    28,489.83x = 42,740.45 × 8,767.64
  4. Step 4: Simplify right side
    28,489.83x = 374,732,621.50
  5. Step 5: Solve for x
    x = 374,732,621.50/28,489.83
  6. Step 6: Final answer
    x = 13,153.21

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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.