Home / 28,208.43-38,927.43-15,461.55

Finding the Fourth Proportional to 28,208.43, 38,927.43 and 15,461.55

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Solution

The fourth proportional to 28,208.43, 38,927.43 and 15,461.55 is: 21,336.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.43 : 38,927.43 = 15,461.55 : x
  2. Step 2: Convert to fraction form
    28,208.43/38,927.43 = 15,461.55/x
  3. Step 3: Cross multiply
    28,208.43x = 38,927.43 × 15,461.55
  4. Step 4: Simplify right side
    28,208.43x = 601,878,405.32
  5. Step 5: Solve for x
    x = 601,878,405.32/28,208.43
  6. Step 6: Final answer
    x = 21,336.83

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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.