Home / 19,038.38-28,557.56-5,187.38

Finding the Fourth Proportional to 19,038.38, 28,557.56 and 5,187.38

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Solution

The fourth proportional to 19,038.38, 28,557.56 and 5,187.38 is: 7,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,038.38 : 28,557.56 = 5,187.38 : x
  2. Step 2: Convert to fraction form
    19,038.38/28,557.56 = 5,187.38/x
  3. Step 3: Cross multiply
    19,038.38x = 28,557.56 × 5,187.38
  4. Step 4: Simplify right side
    19,038.38x = 148,138,785.77
  5. Step 5: Solve for x
    x = 148,138,785.77/19,038.38
  6. Step 6: Final answer
    x = 7,781.06

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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.