Home / 30,955.62-42,718.98-16,808.46

Finding the Fourth Proportional to 30,955.62, 42,718.98 and 16,808.46

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Solution

The fourth proportional to 30,955.62, 42,718.98 and 16,808.46 is: 23,195.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,955.62 : 42,718.98 = 16,808.46 : x
  2. Step 2: Convert to fraction form
    30,955.62/42,718.98 = 16,808.46/x
  3. Step 3: Cross multiply
    30,955.62x = 42,718.98 × 16,808.46
  4. Step 4: Simplify right side
    30,955.62x = 718,040,266.57
  5. Step 5: Solve for x
    x = 718,040,266.57/30,955.62
  6. Step 6: Final answer
    x = 23,195.80

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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.