Home / 28,251.33-38,988.99-15,676.08

Finding the Fourth Proportional to 28,251.33, 38,988.99 and 15,676.08

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Solution

The fourth proportional to 28,251.33, 38,988.99 and 15,676.08 is: 21,634.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,251.33 : 38,988.99 = 15,676.08 : x
  2. Step 2: Convert to fraction form
    28,251.33/38,988.99 = 15,676.08/x
  3. Step 3: Cross multiply
    28,251.33x = 38,988.99 × 15,676.08
  4. Step 4: Simplify right side
    28,251.33x = 611,194,526.36
  5. Step 5: Solve for x
    x = 611,194,526.36/28,251.33
  6. Step 6: Final answer
    x = 21,634.19

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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.