Home / 30,959.49-42,722.96-16,812.03

Finding the Fourth Proportional to 30,959.49, 42,722.96 and 16,812.03

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Solution

The fourth proportional to 30,959.49, 42,722.96 and 16,812.03 is: 23,199.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,959.49 : 42,722.96 = 16,812.03 : x
  2. Step 2: Convert to fraction form
    30,959.49/42,722.96 = 16,812.03/x
  3. Step 3: Cross multiply
    30,959.49x = 42,722.96 × 16,812.03
  4. Step 4: Simplify right side
    30,959.49x = 718,259,601.15
  5. Step 5: Solve for x
    x = 718,259,601.15/30,959.49
  6. Step 6: Final answer
    x = 23,199.98

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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.