Home / 20,301.34-28,035-19,196.90

Finding the Fourth Proportional to 20,301.34, 28,035 and 19,196.90

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Solution

The fourth proportional to 20,301.34, 28,035 and 19,196.90 is: 26,509.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.34 : 28,035 = 19,196.90 : x
  2. Step 2: Convert to fraction form
    20,301.34/28,035 = 19,196.90/x
  3. Step 3: Cross multiply
    20,301.34x = 28,035 × 19,196.90
  4. Step 4: Simplify right side
    20,301.34x = 538,185,091.50
  5. Step 5: Solve for x
    x = 538,185,091.50/20,301.34
  6. Step 6: Final answer
    x = 26,509.83

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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.