Home / 31,052.82-42,852.99-16,905.75

Finding the Fourth Proportional to 31,052.82, 42,852.99 and 16,905.75

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Solution

The fourth proportional to 31,052.82, 42,852.99 and 16,905.75 is: 23,329.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,052.82 : 42,852.99 = 16,905.75 : x
  2. Step 2: Convert to fraction form
    31,052.82/42,852.99 = 16,905.75/x
  3. Step 3: Cross multiply
    31,052.82x = 42,852.99 × 16,905.75
  4. Step 4: Simplify right side
    31,052.82x = 724,461,935.69
  5. Step 5: Solve for x
    x = 724,461,935.69/31,052.82
  6. Step 6: Final answer
    x = 23,329.99

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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.