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Finding the Fourth Proportional to 30,482.66, 41,978.32 and 25,128.26

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Solution

The fourth proportional to 30,482.66, 41,978.32 and 25,128.26 is: 34,604.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,482.66 : 41,978.32 = 25,128.26 : x
  2. Step 2: Convert to fraction form
    30,482.66/41,978.32 = 25,128.26/x
  3. Step 3: Cross multiply
    30,482.66x = 41,978.32 × 25,128.26
  4. Step 4: Simplify right side
    30,482.66x = 1,054,842,024.03
  5. Step 5: Solve for x
    x = 1,054,842,024.03/30,482.66
  6. Step 6: Final answer
    x = 34,604.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.