Home / 20,131.47-27,774.95-11,632.50

Finding the Fourth Proportional to 20,131.47, 27,774.95 and 11,632.50

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Solution

The fourth proportional to 20,131.47, 27,774.95 and 11,632.50 is: 16,049.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131.47 : 27,774.95 = 11,632.50 : x
  2. Step 2: Convert to fraction form
    20,131.47/27,774.95 = 11,632.50/x
  3. Step 3: Cross multiply
    20,131.47x = 27,774.95 × 11,632.50
  4. Step 4: Simplify right side
    20,131.47x = 323,092,047.71
  5. Step 5: Solve for x
    x = 323,092,047.71/20,131.47
  6. Step 6: Final answer
    x = 16,049.10

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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.