Home / 28,685.70-42,991.90-23,141.66

Finding the Fourth Proportional to 28,685.70, 42,991.90 and 23,141.66

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Solution

The fourth proportional to 28,685.70, 42,991.90 and 23,141.66 is: 34,682.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685.70 : 42,991.90 = 23,141.66 : x
  2. Step 2: Convert to fraction form
    28,685.70/42,991.90 = 23,141.66/x
  3. Step 3: Cross multiply
    28,685.70x = 42,991.90 × 23,141.66
  4. Step 4: Simplify right side
    28,685.70x = 994,903,659.74
  5. Step 5: Solve for x
    x = 994,903,659.74/28,685.70
  6. Step 6: Final answer
    x = 34,682.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.