Home / 51,607.84-71,219.42-28,638.08

Finding the Fourth Proportional to 51,607.84, 71,219.42 and 28,638.08

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Solution

The fourth proportional to 51,607.84, 71,219.42 and 28,638.08 is: 39,520.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,607.84 : 71,219.42 = 28,638.08 : x
  2. Step 2: Convert to fraction form
    51,607.84/71,219.42 = 28,638.08/x
  3. Step 3: Cross multiply
    51,607.84x = 71,219.42 × 28,638.08
  4. Step 4: Simplify right side
    51,607.84x = 2,039,587,447.51
  5. Step 5: Solve for x
    x = 2,039,587,447.51/51,607.84
  6. Step 6: Final answer
    x = 39,520.88

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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.