Home / 20,719.48-28,583.78-14,002.66

Finding the Fourth Proportional to 20,719.48, 28,583.78 and 14,002.66

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Solution

The fourth proportional to 20,719.48, 28,583.78 and 14,002.66 is: 19,317.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,719.48 : 28,583.78 = 14,002.66 : x
  2. Step 2: Convert to fraction form
    20,719.48/28,583.78 = 14,002.66/x
  3. Step 3: Cross multiply
    20,719.48x = 28,583.78 × 14,002.66
  4. Step 4: Simplify right side
    20,719.48x = 400,248,952.85
  5. Step 5: Solve for x
    x = 400,248,952.85/20,719.48
  6. Step 6: Final answer
    x = 19,317.52

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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.