Home / 20,558.16-30,810.96-17,784.72

Finding the Fourth Proportional to 20,558.16, 30,810.96 and 17,784.72

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Solution

The fourth proportional to 20,558.16, 30,810.96 and 17,784.72 is: 26,654.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.16 : 30,810.96 = 17,784.72 : x
  2. Step 2: Convert to fraction form
    20,558.16/30,810.96 = 17,784.72/x
  3. Step 3: Cross multiply
    20,558.16x = 30,810.96 × 17,784.72
  4. Step 4: Simplify right side
    20,558.16x = 547,964,296.53
  5. Step 5: Solve for x
    x = 547,964,296.53/20,558.16
  6. Step 6: Final answer
    x = 26,654.35

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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.