Home / 30,955.50-42,717.44-16,808.04

Finding the Fourth Proportional to 30,955.50, 42,717.44 and 16,808.04

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Solution

The fourth proportional to 30,955.50, 42,717.44 and 16,808.04 is: 23,194.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,955.50 : 42,717.44 = 16,808.04 : x
  2. Step 2: Convert to fraction form
    30,955.50/42,717.44 = 16,808.04/x
  3. Step 3: Cross multiply
    30,955.50x = 42,717.44 × 16,808.04
  4. Step 4: Simplify right side
    30,955.50x = 717,996,440.22
  5. Step 5: Solve for x
    x = 717,996,440.22/30,955.50
  6. Step 6: Final answer
    x = 23,194.47

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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.