Home / 42,479.87-63,728.30-23,786.48

Finding the Fourth Proportional to 42,479.87, 63,728.30 and 23,786.48

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Solution

The fourth proportional to 42,479.87, 63,728.30 and 23,786.48 is: 35,684.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,479.87 : 63,728.30 = 23,786.48 : x
  2. Step 2: Convert to fraction form
    42,479.87/63,728.30 = 23,786.48/x
  3. Step 3: Cross multiply
    42,479.87x = 63,728.30 × 23,786.48
  4. Step 4: Simplify right side
    42,479.87x = 1,515,872,152.17
  5. Step 5: Solve for x
    x = 1,515,872,152.17/42,479.87
  6. Step 6: Final answer
    x = 35,684.49

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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.