Home / 51,608.04-71,215.40-28,639.07

Finding the Fourth Proportional to 51,608.04, 71,215.40 and 28,639.07

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Solution

The fourth proportional to 51,608.04, 71,215.40 and 28,639.07 is: 39,519.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,608.04 : 71,215.40 = 28,639.07 : x
  2. Step 2: Convert to fraction form
    51,608.04/71,215.40 = 28,639.07/x
  3. Step 3: Cross multiply
    51,608.04x = 71,215.40 × 28,639.07
  4. Step 4: Simplify right side
    51,608.04x = 2,039,542,808.26
  5. Step 5: Solve for x
    x = 2,039,542,808.26/51,608.04
  6. Step 6: Final answer
    x = 39,519.87

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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.