Home / 27,631.01-38,130.79-15,055.76

Finding the Fourth Proportional to 27,631.01, 38,130.79 and 15,055.76

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Solution

The fourth proportional to 27,631.01, 38,130.79 and 15,055.76 is: 20,776.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,631.01 : 38,130.79 = 15,055.76 : x
  2. Step 2: Convert to fraction form
    27,631.01/38,130.79 = 15,055.76/x
  3. Step 3: Cross multiply
    27,631.01x = 38,130.79 × 15,055.76
  4. Step 4: Simplify right side
    27,631.01x = 574,087,832.20
  5. Step 5: Solve for x
    x = 574,087,832.20/27,631.01
  6. Step 6: Final answer
    x = 20,776.94

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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.