Home / 30,768.32-46,146.40-14,123.84

Finding the Fourth Proportional to 30,768.32, 46,146.40 and 14,123.84

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Solution

The fourth proportional to 30,768.32, 46,146.40 and 14,123.84 is: 21,182.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,768.32 : 46,146.40 = 14,123.84 : x
  2. Step 2: Convert to fraction form
    30,768.32/46,146.40 = 14,123.84/x
  3. Step 3: Cross multiply
    30,768.32x = 46,146.40 × 14,123.84
  4. Step 4: Simplify right side
    30,768.32x = 651,764,370.18
  5. Step 5: Solve for x
    x = 651,764,370.18/30,768.32
  6. Step 6: Final answer
    x = 21,182.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.