Home / 20,470.36-30,705.54-13,543.24

Finding the Fourth Proportional to 20,470.36, 30,705.54 and 13,543.24

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Solution

The fourth proportional to 20,470.36, 30,705.54 and 13,543.24 is: 20,314.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,470.36 : 30,705.54 = 13,543.24 : x
  2. Step 2: Convert to fraction form
    20,470.36/30,705.54 = 13,543.24/x
  3. Step 3: Cross multiply
    20,470.36x = 30,705.54 × 13,543.24
  4. Step 4: Simplify right side
    20,470.36x = 415,852,497.55
  5. Step 5: Solve for x
    x = 415,852,497.55/20,470.36
  6. Step 6: Final answer
    x = 20,314.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.