Home / 30,013.56-41,420.16-18,080.64

Finding the Fourth Proportional to 30,013.56, 41,420.16 and 18,080.64

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Solution

The fourth proportional to 30,013.56, 41,420.16 and 18,080.64 is: 24,952.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,013.56 : 41,420.16 = 18,080.64 : x
  2. Step 2: Convert to fraction form
    30,013.56/41,420.16 = 18,080.64/x
  3. Step 3: Cross multiply
    30,013.56x = 41,420.16 × 18,080.64
  4. Step 4: Simplify right side
    30,013.56x = 748,903,001.70
  5. Step 5: Solve for x
    x = 748,903,001.70/30,013.56
  6. Step 6: Final answer
    x = 24,952.16

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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.