Home / 30,949.98-42,710.31-16,802.70

Finding the Fourth Proportional to 30,949.98, 42,710.31 and 16,802.70

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Solution

The fourth proportional to 30,949.98, 42,710.31 and 16,802.70 is: 23,187.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,949.98 : 42,710.31 = 16,802.70 : x
  2. Step 2: Convert to fraction form
    30,949.98/42,710.31 = 16,802.70/x
  3. Step 3: Cross multiply
    30,949.98x = 42,710.31 × 16,802.70
  4. Step 4: Simplify right side
    30,949.98x = 717,648,525.84
  5. Step 5: Solve for x
    x = 717,648,525.84/30,949.98
  6. Step 6: Final answer
    x = 23,187.37

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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.