Home / 30,964.69-42,731.08-16,817.41

Finding the Fourth Proportional to 30,964.69, 42,731.08 and 16,817.41

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Solution

The fourth proportional to 30,964.69, 42,731.08 and 16,817.41 is: 23,207.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,964.69 : 42,731.08 = 16,817.41 : x
  2. Step 2: Convert to fraction form
    30,964.69/42,731.08 = 16,817.41/x
  3. Step 3: Cross multiply
    30,964.69x = 42,731.08 × 16,817.41
  4. Step 4: Simplify right side
    30,964.69x = 718,626,092.10
  5. Step 5: Solve for x
    x = 718,626,092.10/30,964.69
  6. Step 6: Final answer
    x = 23,207.92

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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.