Home / 20,065.86-27,690.54-11,113.17

Finding the Fourth Proportional to 20,065.86, 27,690.54 and 11,113.17

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Solution

The fourth proportional to 20,065.86, 27,690.54 and 11,113.17 is: 15,335.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.86 : 27,690.54 = 11,113.17 : x
  2. Step 2: Convert to fraction form
    20,065.86/27,690.54 = 11,113.17/x
  3. Step 3: Cross multiply
    20,065.86x = 27,690.54 × 11,113.17
  4. Step 4: Simplify right side
    20,065.86x = 307,729,678.41
  5. Step 5: Solve for x
    x = 307,729,678.41/20,065.86
  6. Step 6: Final answer
    x = 15,335.98

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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.