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Finding the Fourth Proportional to 30,303.78, 41,818.05 and 16,875.60

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Solution

The fourth proportional to 30,303.78, 41,818.05 and 16,875.60 is: 23,287.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,303.78 : 41,818.05 = 16,875.60 : x
  2. Step 2: Convert to fraction form
    30,303.78/41,818.05 = 16,875.60/x
  3. Step 3: Cross multiply
    30,303.78x = 41,818.05 × 16,875.60
  4. Step 4: Simplify right side
    30,303.78x = 705,704,684.58
  5. Step 5: Solve for x
    x = 705,704,684.58/30,303.78
  6. Step 6: Final answer
    x = 23,287.68

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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.