Home / 20,276.07-28,000.23-19,171.64

Finding the Fourth Proportional to 20,276.07, 28,000.23 and 19,171.64

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Solution

The fourth proportional to 20,276.07, 28,000.23 and 19,171.64 is: 26,475.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276.07 : 28,000.23 = 19,171.64 : x
  2. Step 2: Convert to fraction form
    20,276.07/28,000.23 = 19,171.64/x
  3. Step 3: Cross multiply
    20,276.07x = 28,000.23 × 19,171.64
  4. Step 4: Simplify right side
    20,276.07x = 536,810,117.58
  5. Step 5: Solve for x
    x = 536,810,117.58/20,276.07
  6. Step 6: Final answer
    x = 26,475.06

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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.