Home / 30,877.60-42,611.12-16,730.44

Finding the Fourth Proportional to 30,877.60, 42,611.12 and 16,730.44

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Solution

The fourth proportional to 30,877.60, 42,611.12 and 16,730.44 is: 23,088.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,877.60 : 42,611.12 = 16,730.44 : x
  2. Step 2: Convert to fraction form
    30,877.60/42,611.12 = 16,730.44/x
  3. Step 3: Cross multiply
    30,877.60x = 42,611.12 × 16,730.44
  4. Step 4: Simplify right side
    30,877.60x = 712,902,786.49
  5. Step 5: Solve for x
    x = 712,902,786.49/30,877.60
  6. Step 6: Final answer
    x = 23,088.02

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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.