Home / 20,470.44-28,219.14-14,483.64

Finding the Fourth Proportional to 20,470.44, 28,219.14 and 14,483.64

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Solution

The fourth proportional to 20,470.44, 28,219.14 and 14,483.64 is: 19,966.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,470.44 : 28,219.14 = 14,483.64 : x
  2. Step 2: Convert to fraction form
    20,470.44/28,219.14 = 14,483.64/x
  3. Step 3: Cross multiply
    20,470.44x = 28,219.14 × 14,483.64
  4. Step 4: Simplify right side
    20,470.44x = 408,715,864.87
  5. Step 5: Solve for x
    x = 408,715,864.87/20,470.44
  6. Step 6: Final answer
    x = 19,966.15

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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.