Home / 27,631.10-38,130.91-15,055.85

Finding the Fourth Proportional to 27,631.10, 38,130.91 and 15,055.85

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Solution

The fourth proportional to 27,631.10, 38,130.91 and 15,055.85 is: 20,777.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,631.10 : 38,130.91 = 15,055.85 : x
  2. Step 2: Convert to fraction form
    27,631.10/38,130.91 = 15,055.85/x
  3. Step 3: Cross multiply
    27,631.10x = 38,130.91 × 15,055.85
  4. Step 4: Simplify right side
    27,631.10x = 574,093,261.32
  5. Step 5: Solve for x
    x = 574,093,261.32/27,631.10
  6. Step 6: Final answer
    x = 20,777.07

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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.