Home / 30,740.40-46,110.60-28,772.10

Finding the Fourth Proportional to 30,740.40, 46,110.60 and 28,772.10

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Solution

The fourth proportional to 30,740.40, 46,110.60 and 28,772.10 is: 43,158.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,740.40 : 46,110.60 = 28,772.10 : x
  2. Step 2: Convert to fraction form
    30,740.40/46,110.60 = 28,772.10/x
  3. Step 3: Cross multiply
    30,740.40x = 46,110.60 × 28,772.10
  4. Step 4: Simplify right side
    30,740.40x = 1,326,698,794.26
  5. Step 5: Solve for x
    x = 1,326,698,794.26/30,740.40
  6. Step 6: Final answer
    x = 43,158.15

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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.