Home / 27,579.47-38,058.06-15,478.82

Finding the Fourth Proportional to 27,579.47, 38,058.06 and 15,478.82

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Solution

The fourth proportional to 27,579.47, 38,058.06 and 15,478.82 is: 21,359.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,579.47 : 38,058.06 = 15,478.82 : x
  2. Step 2: Convert to fraction form
    27,579.47/38,058.06 = 15,478.82/x
  3. Step 3: Cross multiply
    27,579.47x = 38,058.06 × 15,478.82
  4. Step 4: Simplify right side
    27,579.47x = 589,093,754.67
  5. Step 5: Solve for x
    x = 589,093,754.67/27,579.47
  6. Step 6: Final answer
    x = 21,359.87

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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.