Home / 27,520.90-37,984.89-18,090.34

Finding the Fourth Proportional to 27,520.90, 37,984.89 and 18,090.34

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Solution

The fourth proportional to 27,520.90, 37,984.89 and 18,090.34 is: 24,968.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,520.90 : 37,984.89 = 18,090.34 : x
  2. Step 2: Convert to fraction form
    27,520.90/37,984.89 = 18,090.34/x
  3. Step 3: Cross multiply
    27,520.90x = 37,984.89 × 18,090.34
  4. Step 4: Simplify right side
    27,520.90x = 687,159,574.96
  5. Step 5: Solve for x
    x = 687,159,574.96/27,520.90
  6. Step 6: Final answer
    x = 24,968.64

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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.