Home / 28,988.04-43,407.64-20,090.68

Finding the Fourth Proportional to 28,988.04, 43,407.64 and 20,090.68

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Solution

The fourth proportional to 28,988.04, 43,407.64 and 20,090.68 is: 30,084.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988.04 : 43,407.64 = 20,090.68 : x
  2. Step 2: Convert to fraction form
    28,988.04/43,407.64 = 20,090.68/x
  3. Step 3: Cross multiply
    28,988.04x = 43,407.64 × 20,090.68
  4. Step 4: Simplify right side
    28,988.04x = 872,089,004.80
  5. Step 5: Solve for x
    x = 872,089,004.80/28,988.04
  6. Step 6: Final answer
    x = 30,084.44

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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.