Home / 19,078.72-28,616.16-5,931.52

Finding the Fourth Proportional to 19,078.72, 28,616.16 and 5,931.52

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Solution

The fourth proportional to 19,078.72, 28,616.16 and 5,931.52 is: 8,896.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078.72 : 28,616.16 = 5,931.52 : x
  2. Step 2: Convert to fraction form
    19,078.72/28,616.16 = 5,931.52/x
  3. Step 3: Cross multiply
    19,078.72x = 28,616.16 × 5,931.52
  4. Step 4: Simplify right side
    19,078.72x = 169,737,325.36
  5. Step 5: Solve for x
    x = 169,737,325.36/19,078.72
  6. Step 6: Final answer
    x = 8,896.68

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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.