Home / 20,416.41-30,565.58-11,957.31

Finding the Fourth Proportional to 20,416.41, 30,565.58 and 11,957.31

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Solution

The fourth proportional to 20,416.41, 30,565.58 and 11,957.31 is: 17,901.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.41 : 30,565.58 = 11,957.31 : x
  2. Step 2: Convert to fraction form
    20,416.41/30,565.58 = 11,957.31/x
  3. Step 3: Cross multiply
    20,416.41x = 30,565.58 × 11,957.31
  4. Step 4: Simplify right side
    20,416.41x = 365,482,055.60
  5. Step 5: Solve for x
    x = 365,482,055.60/20,416.41
  6. Step 6: Final answer
    x = 17,901.39

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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.