Home / 28,975.20-43,462.80-25,670.40

Finding the Fourth Proportional to 28,975.20, 43,462.80 and 25,670.40

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Solution

The fourth proportional to 28,975.20, 43,462.80 and 25,670.40 is: 38,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,975.20 : 43,462.80 = 25,670.40 : x
  2. Step 2: Convert to fraction form
    28,975.20/43,462.80 = 25,670.40/x
  3. Step 3: Cross multiply
    28,975.20x = 43,462.80 × 25,670.40
  4. Step 4: Simplify right side
    28,975.20x = 1,115,707,461.12
  5. Step 5: Solve for x
    x = 1,115,707,461.12/28,975.20
  6. Step 6: Final answer
    x = 38,505.60

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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.