Home / 51,415.38-70,956.81-28,761.84

Finding the Fourth Proportional to 51,415.38, 70,956.81 and 28,761.84

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Solution

The fourth proportional to 51,415.38, 70,956.81 and 28,761.84 is: 39,693.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,415.38 : 70,956.81 = 28,761.84 : x
  2. Step 2: Convert to fraction form
    51,415.38/70,956.81 = 28,761.84/x
  3. Step 3: Cross multiply
    51,415.38x = 70,956.81 × 28,761.84
  4. Step 4: Simplify right side
    51,415.38x = 2,040,848,416.13
  5. Step 5: Solve for x
    x = 2,040,848,416.13/51,415.38
  6. Step 6: Final answer
    x = 39,693.34

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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.