Home / 30,878.20-46,312.98-10,099

Finding the Fourth Proportional to 30,878.20, 46,312.98 and 10,099

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Solution

The fourth proportional to 30,878.20, 46,312.98 and 10,099 is: 15,147.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,878.20 : 46,312.98 = 10,099 : x
  2. Step 2: Convert to fraction form
    30,878.20/46,312.98 = 10,099/x
  3. Step 3: Cross multiply
    30,878.20x = 46,312.98 × 10,099
  4. Step 4: Simplify right side
    30,878.20x = 467,714,785.02
  5. Step 5: Solve for x
    x = 467,714,785.02/30,878.20
  6. Step 6: Final answer
    x = 15,147.09

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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.