Home / 20,776.26-28,637.37-14,477.70

Finding the Fourth Proportional to 20,776.26, 28,637.37 and 14,477.70

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Solution

The fourth proportional to 20,776.26, 28,637.37 and 14,477.70 is: 19,955.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776.26 : 28,637.37 = 14,477.70 : x
  2. Step 2: Convert to fraction form
    20,776.26/28,637.37 = 14,477.70/x
  3. Step 3: Cross multiply
    20,776.26x = 28,637.37 × 14,477.70
  4. Step 4: Simplify right side
    20,776.26x = 414,603,251.65
  5. Step 5: Solve for x
    x = 414,603,251.65/20,776.26
  6. Step 6: Final answer
    x = 19,955.62

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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.