Home / 28,870.43-43,313.31-9,148.95

Finding the Fourth Proportional to 28,870.43, 43,313.31 and 9,148.95

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Solution

The fourth proportional to 28,870.43, 43,313.31 and 9,148.95 is: 13,725.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.43 : 43,313.31 = 9,148.95 : x
  2. Step 2: Convert to fraction form
    28,870.43/43,313.31 = 9,148.95/x
  3. Step 3: Cross multiply
    28,870.43x = 43,313.31 × 9,148.95
  4. Step 4: Simplify right side
    28,870.43x = 396,271,307.52
  5. Step 5: Solve for x
    x = 396,271,307.52/28,870.43
  6. Step 6: Final answer
    x = 13,725.86

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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.