Home / 31,104.48-42,923.70-16,957.20

Finding the Fourth Proportional to 31,104.48, 42,923.70 and 16,957.20

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Solution

The fourth proportional to 31,104.48, 42,923.70 and 16,957.20 is: 23,400.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,104.48 : 42,923.70 = 16,957.20 : x
  2. Step 2: Convert to fraction form
    31,104.48/42,923.70 = 16,957.20/x
  3. Step 3: Cross multiply
    31,104.48x = 42,923.70 × 16,957.20
  4. Step 4: Simplify right side
    31,104.48x = 727,865,765.64
  5. Step 5: Solve for x
    x = 727,865,765.64/31,104.48
  6. Step 6: Final answer
    x = 23,400.67

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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.