Home / 30,254.64-41,708.11-20,179.40

Finding the Fourth Proportional to 30,254.64, 41,708.11 and 20,179.40

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Solution

The fourth proportional to 30,254.64, 41,708.11 and 20,179.40 is: 27,818.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,254.64 : 41,708.11 = 20,179.40 : x
  2. Step 2: Convert to fraction form
    30,254.64/41,708.11 = 20,179.40/x
  3. Step 3: Cross multiply
    30,254.64x = 41,708.11 × 20,179.40
  4. Step 4: Simplify right side
    30,254.64x = 841,644,634.93
  5. Step 5: Solve for x
    x = 841,644,634.93/30,254.64
  6. Step 6: Final answer
    x = 27,818.70

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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.