Home / 20,823.60-31,200.84-14,654.64

Finding the Fourth Proportional to 20,823.60, 31,200.84 and 14,654.64

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Solution

The fourth proportional to 20,823.60, 31,200.84 and 14,654.64 is: 21,957.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,823.60 : 31,200.84 = 14,654.64 : x
  2. Step 2: Convert to fraction form
    20,823.60/31,200.84 = 14,654.64/x
  3. Step 3: Cross multiply
    20,823.60x = 31,200.84 × 14,654.64
  4. Step 4: Simplify right side
    20,823.60x = 457,237,077.90
  5. Step 5: Solve for x
    x = 457,237,077.90/20,823.60
  6. Step 6: Final answer
    x = 21,957.64

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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.