Home / 40,284.15-55,541.03-28,812.88

Finding the Fourth Proportional to 40,284.15, 55,541.03 and 28,812.88

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Solution

The fourth proportional to 40,284.15, 55,541.03 and 28,812.88 is: 39,725.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,284.15 : 55,541.03 = 28,812.88 : x
  2. Step 2: Convert to fraction form
    40,284.15/55,541.03 = 28,812.88/x
  3. Step 3: Cross multiply
    40,284.15x = 55,541.03 × 28,812.88
  4. Step 4: Simplify right side
    40,284.15x = 1,600,296,965.65
  5. Step 5: Solve for x
    x = 1,600,296,965.65/40,284.15
  6. Step 6: Final answer
    x = 39,725.23

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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.