Home / 28,629.72-42,947.46-10,622.88

Finding the Fourth Proportional to 28,629.72, 42,947.46 and 10,622.88

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Solution

The fourth proportional to 28,629.72, 42,947.46 and 10,622.88 is: 15,935.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,629.72 : 42,947.46 = 10,622.88 : x
  2. Step 2: Convert to fraction form
    28,629.72/42,947.46 = 10,622.88/x
  3. Step 3: Cross multiply
    28,629.72x = 42,947.46 × 10,622.88
  4. Step 4: Simplify right side
    28,629.72x = 456,225,713.88
  5. Step 5: Solve for x
    x = 456,225,713.88/28,629.72
  6. Step 6: Final answer
    x = 15,935.39

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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.