Home / 19,386.38-29,028.80-12,701.86

Finding the Fourth Proportional to 19,386.38, 29,028.80 and 12,701.86

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Solution

The fourth proportional to 19,386.38, 29,028.80 and 12,701.86 is: 19,019.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386.38 : 29,028.80 = 12,701.86 : x
  2. Step 2: Convert to fraction form
    19,386.38/29,028.80 = 12,701.86/x
  3. Step 3: Cross multiply
    19,386.38x = 29,028.80 × 12,701.86
  4. Step 4: Simplify right side
    19,386.38x = 368,719,753.57
  5. Step 5: Solve for x
    x = 368,719,753.57/19,386.38
  6. Step 6: Final answer
    x = 19,019.53

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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.