Home / 30,812.06-42,520.67-16,664.90

Finding the Fourth Proportional to 30,812.06, 42,520.67 and 16,664.90

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Solution

The fourth proportional to 30,812.06, 42,520.67 and 16,664.90 is: 22,997.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,812.06 : 42,520.67 = 16,664.90 : x
  2. Step 2: Convert to fraction form
    30,812.06/42,520.67 = 16,664.90/x
  3. Step 3: Cross multiply
    30,812.06x = 42,520.67 × 16,664.90
  4. Step 4: Simplify right side
    30,812.06x = 708,602,713.48
  5. Step 5: Solve for x
    x = 708,602,713.48/30,812.06
  6. Step 6: Final answer
    x = 22,997.58

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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.