Home / 28,878.79-43,318.43-10,158.96

Finding the Fourth Proportional to 28,878.79, 43,318.43 and 10,158.96

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Solution

The fourth proportional to 28,878.79, 43,318.43 and 10,158.96 is: 15,238.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,878.79 : 43,318.43 = 10,158.96 : x
  2. Step 2: Convert to fraction form
    28,878.79/43,318.43 = 10,158.96/x
  3. Step 3: Cross multiply
    28,878.79x = 43,318.43 × 10,158.96
  4. Step 4: Simplify right side
    28,878.79x = 440,070,197.63
  5. Step 5: Solve for x
    x = 440,070,197.63/28,878.79
  6. Step 6: Final answer
    x = 15,238.53

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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.