Home / 27,959.31-38,583.30-15,212.76

Finding the Fourth Proportional to 27,959.31, 38,583.30 and 15,212.76

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Solution

The fourth proportional to 27,959.31, 38,583.30 and 15,212.76 is: 20,993.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,959.31 : 38,583.30 = 15,212.76 : x
  2. Step 2: Convert to fraction form
    27,959.31/38,583.30 = 15,212.76/x
  3. Step 3: Cross multiply
    27,959.31x = 38,583.30 × 15,212.76
  4. Step 4: Simplify right side
    27,959.31x = 586,958,482.91
  5. Step 5: Solve for x
    x = 586,958,482.91/27,959.31
  6. Step 6: Final answer
    x = 20,993.31

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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.