Home / 27,630.32-38,129.84-15,055.07

Finding the Fourth Proportional to 27,630.32, 38,129.84 and 15,055.07

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Solution

The fourth proportional to 27,630.32, 38,129.84 and 15,055.07 is: 20,775.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,630.32 : 38,129.84 = 15,055.07 : x
  2. Step 2: Convert to fraction form
    27,630.32/38,129.84 = 15,055.07/x
  3. Step 3: Cross multiply
    27,630.32x = 38,129.84 × 15,055.07
  4. Step 4: Simplify right side
    27,630.32x = 574,047,144.36
  5. Step 5: Solve for x
    x = 574,047,144.36/27,630.32
  6. Step 6: Final answer
    x = 20,775.99

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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.