Home / 51,392.72-70,922.28-28,421.84

Finding the Fourth Proportional to 51,392.72, 70,922.28 and 28,421.84

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Solution

The fourth proportional to 51,392.72, 70,922.28 and 28,421.84 is: 39,222.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,392.72 : 70,922.28 = 28,421.84 : x
  2. Step 2: Convert to fraction form
    51,392.72/70,922.28 = 28,421.84/x
  3. Step 3: Cross multiply
    51,392.72x = 70,922.28 × 28,421.84
  4. Step 4: Simplify right side
    51,392.72x = 2,015,741,694.60
  5. Step 5: Solve for x
    x = 2,015,741,694.60/51,392.72
  6. Step 6: Final answer
    x = 39,222.32

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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.