Home / 20,134.69-27,776.23-14,169.67

Finding the Fourth Proportional to 20,134.69, 27,776.23 and 14,169.67

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Solution

The fourth proportional to 20,134.69, 27,776.23 and 14,169.67 is: 19,547.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.69 : 27,776.23 = 14,169.67 : x
  2. Step 2: Convert to fraction form
    20,134.69/27,776.23 = 14,169.67/x
  3. Step 3: Cross multiply
    20,134.69x = 27,776.23 × 14,169.67
  4. Step 4: Simplify right side
    20,134.69x = 393,580,012.94
  5. Step 5: Solve for x
    x = 393,580,012.94/20,134.69
  6. Step 6: Final answer
    x = 19,547.36

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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.