Home / 32,740.81-45,181.14-20,015.32

Finding the Fourth Proportional to 32,740.81, 45,181.14 and 20,015.32

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Solution

The fourth proportional to 32,740.81, 45,181.14 and 20,015.32 is: 27,620.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,740.81 : 45,181.14 = 20,015.32 : x
  2. Step 2: Convert to fraction form
    32,740.81/45,181.14 = 20,015.32/x
  3. Step 3: Cross multiply
    32,740.81x = 45,181.14 × 20,015.32
  4. Step 4: Simplify right side
    32,740.81x = 904,314,975.06
  5. Step 5: Solve for x
    x = 904,314,975.06/32,740.81
  6. Step 6: Final answer
    x = 27,620.42

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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.