Home / 31,105.63-42,925.44-16,958.17

Finding the Fourth Proportional to 31,105.63, 42,925.44 and 16,958.17

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Solution

The fourth proportional to 31,105.63, 42,925.44 and 16,958.17 is: 23,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,105.63 : 42,925.44 = 16,958.17 : x
  2. Step 2: Convert to fraction form
    31,105.63/42,925.44 = 16,958.17/x
  3. Step 3: Cross multiply
    31,105.63x = 42,925.44 × 16,958.17
  4. Step 4: Simplify right side
    31,105.63x = 727,936,908.84
  5. Step 5: Solve for x
    x = 727,936,908.84/31,105.63
  6. Step 6: Final answer
    x = 23,402.10

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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.