Home / 20,283.30-28,010.12-19,178.87

Finding the Fourth Proportional to 20,283.30, 28,010.12 and 19,178.87

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Solution

The fourth proportional to 20,283.30, 28,010.12 and 19,178.87 is: 26,484.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,283.30 : 28,010.12 = 19,178.87 : x
  2. Step 2: Convert to fraction form
    20,283.30/28,010.12 = 19,178.87/x
  3. Step 3: Cross multiply
    20,283.30x = 28,010.12 × 19,178.87
  4. Step 4: Simplify right side
    20,283.30x = 537,202,214.22
  5. Step 5: Solve for x
    x = 537,202,214.22/20,283.30
  6. Step 6: Final answer
    x = 26,484.95

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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.