Home / 30,949.56-42,709.80-16,802.10

Finding the Fourth Proportional to 30,949.56, 42,709.80 and 16,802.10

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Solution

The fourth proportional to 30,949.56, 42,709.80 and 16,802.10 is: 23,186.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,949.56 : 42,709.80 = 16,802.10 : x
  2. Step 2: Convert to fraction form
    30,949.56/42,709.80 = 16,802.10/x
  3. Step 3: Cross multiply
    30,949.56x = 42,709.80 × 16,802.10
  4. Step 4: Simplify right side
    30,949.56x = 717,614,330.58
  5. Step 5: Solve for x
    x = 717,614,330.58/30,949.56
  6. Step 6: Final answer
    x = 23,186.58

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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.