Home / 31,106.28-42,925.58-16,958.84

Finding the Fourth Proportional to 31,106.28, 42,925.58 and 16,958.84

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Solution

The fourth proportional to 31,106.28, 42,925.58 and 16,958.84 is: 23,402.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,106.28 : 42,925.58 = 16,958.84 : x
  2. Step 2: Convert to fraction form
    31,106.28/42,925.58 = 16,958.84/x
  3. Step 3: Cross multiply
    31,106.28x = 42,925.58 × 16,958.84
  4. Step 4: Simplify right side
    31,106.28x = 727,968,043.13
  5. Step 5: Solve for x
    x = 727,968,043.13/31,106.28
  6. Step 6: Final answer
    x = 23,402.61

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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.