Home / 28,208.97-38,926.28-15,460.11

Finding the Fourth Proportional to 28,208.97, 38,926.28 and 15,460.11

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Solution

The fourth proportional to 28,208.97, 38,926.28 and 15,460.11 is: 21,333.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.97 : 38,926.28 = 15,460.11 : x
  2. Step 2: Convert to fraction form
    28,208.97/38,926.28 = 15,460.11/x
  3. Step 3: Cross multiply
    28,208.97x = 38,926.28 × 15,460.11
  4. Step 4: Simplify right side
    28,208.97x = 601,804,609.34
  5. Step 5: Solve for x
    x = 601,804,609.34/28,208.97
  6. Step 6: Final answer
    x = 21,333.80

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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.