Home / 30,964.14-42,730.74-16,817.22

Finding the Fourth Proportional to 30,964.14, 42,730.74 and 16,817.22

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Solution

The fourth proportional to 30,964.14, 42,730.74 and 16,817.22 is: 23,207.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,964.14 : 42,730.74 = 16,817.22 : x
  2. Step 2: Convert to fraction form
    30,964.14/42,730.74 = 16,817.22/x
  3. Step 3: Cross multiply
    30,964.14x = 42,730.74 × 16,817.22
  4. Step 4: Simplify right side
    30,964.14x = 718,612,255.34
  5. Step 5: Solve for x
    x = 718,612,255.34/30,964.14
  6. Step 6: Final answer
    x = 23,207.89

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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.