Home / 30,964-42,730.34-16,817.08

Finding the Fourth Proportional to 30,964, 42,730.34 and 16,817.08

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Solution

The fourth proportional to 30,964, 42,730.34 and 16,817.08 is: 23,207.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,964 : 42,730.34 = 16,817.08 : x
  2. Step 2: Convert to fraction form
    30,964/42,730.34 = 16,817.08/x
  3. Step 3: Cross multiply
    30,964x = 42,730.34 × 16,817.08
  4. Step 4: Simplify right side
    30,964x = 718,599,546.21
  5. Step 5: Solve for x
    x = 718,599,546.21/30,964
  6. Step 6: Final answer
    x = 23,207.58

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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.