Home / 27,579.58-38,058.25-15,478.93

Finding the Fourth Proportional to 27,579.58, 38,058.25 and 15,478.93

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Solution

The fourth proportional to 27,579.58, 38,058.25 and 15,478.93 is: 21,360.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,579.58 : 38,058.25 = 15,478.93 : x
  2. Step 2: Convert to fraction form
    27,579.58/38,058.25 = 15,478.93/x
  3. Step 3: Cross multiply
    27,579.58x = 38,058.25 × 15,478.93
  4. Step 4: Simplify right side
    27,579.58x = 589,100,987.67
  5. Step 5: Solve for x
    x = 589,100,987.67/27,579.58
  6. Step 6: Final answer
    x = 21,360.05

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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.