Home / 48,629.76-72,962.72-20,557.12

Finding the Fourth Proportional to 48,629.76, 72,962.72 and 20,557.12

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Solution

The fourth proportional to 48,629.76, 72,962.72 and 20,557.12 is: 30,843.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,629.76 : 72,962.72 = 20,557.12 : x
  2. Step 2: Convert to fraction form
    48,629.76/72,962.72 = 20,557.12/x
  3. Step 3: Cross multiply
    48,629.76x = 72,962.72 × 20,557.12
  4. Step 4: Simplify right side
    48,629.76x = 1,499,903,390.57
  5. Step 5: Solve for x
    x = 1,499,903,390.57/48,629.76
  6. Step 6: Final answer
    x = 30,843.32

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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.