Home / 19,029.52-28,545.04-5,178.48

Finding the Fourth Proportional to 19,029.52, 28,545.04 and 5,178.48

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Solution

The fourth proportional to 19,029.52, 28,545.04 and 5,178.48 is: 7,767.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,029.52 : 28,545.04 = 5,178.48 : x
  2. Step 2: Convert to fraction form
    19,029.52/28,545.04 = 5,178.48/x
  3. Step 3: Cross multiply
    19,029.52x = 28,545.04 × 5,178.48
  4. Step 4: Simplify right side
    19,029.52x = 147,819,918.74
  5. Step 5: Solve for x
    x = 147,819,918.74/19,029.52
  6. Step 6: Final answer
    x = 7,767.93

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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.