Home / 30,090.56-41,528.88-18,160.64

Finding the Fourth Proportional to 30,090.56, 41,528.88 and 18,160.64

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Solution

The fourth proportional to 30,090.56, 41,528.88 and 18,160.64 is: 25,064.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,090.56 : 41,528.88 = 18,160.64 : x
  2. Step 2: Convert to fraction form
    30,090.56/41,528.88 = 18,160.64/x
  3. Step 3: Cross multiply
    30,090.56x = 41,528.88 × 18,160.64
  4. Step 4: Simplify right side
    30,090.56x = 754,191,039.28
  5. Step 5: Solve for x
    x = 754,191,039.28/30,090.56
  6. Step 6: Final answer
    x = 25,064.04

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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.