Home / 30,818.20-42,612.08-26,881.60

Finding the Fourth Proportional to 30,818.20, 42,612.08 and 26,881.60

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Solution

The fourth proportional to 30,818.20, 42,612.08 and 26,881.60 is: 37,168.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,818.20 : 42,612.08 = 26,881.60 : x
  2. Step 2: Convert to fraction form
    30,818.20/42,612.08 = 26,881.60/x
  3. Step 3: Cross multiply
    30,818.20x = 42,612.08 × 26,881.60
  4. Step 4: Simplify right side
    30,818.20x = 1,145,480,889.73
  5. Step 5: Solve for x
    x = 1,145,480,889.73/30,818.20
  6. Step 6: Final answer
    x = 37,168.97

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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.