Home / 31,051.80-42,852.46-16,905.56

Finding the Fourth Proportional to 31,051.80, 42,852.46 and 16,905.56

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Solution

The fourth proportional to 31,051.80, 42,852.46 and 16,905.56 is: 23,330.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,051.80 : 42,852.46 = 16,905.56 : x
  2. Step 2: Convert to fraction form
    31,051.80/42,852.46 = 16,905.56/x
  3. Step 3: Cross multiply
    31,051.80x = 42,852.46 × 16,905.56
  4. Step 4: Simplify right side
    31,051.80x = 724,444,833.68
  5. Step 5: Solve for x
    x = 724,444,833.68/31,051.80
  6. Step 6: Final answer
    x = 23,330.20

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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.