Home / 20,545.38-28,303.43-19,544.85

Finding the Fourth Proportional to 20,545.38, 28,303.43 and 19,544.85

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Solution

The fourth proportional to 20,545.38, 28,303.43 and 19,544.85 is: 26,925.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,545.38 : 28,303.43 = 19,544.85 : x
  2. Step 2: Convert to fraction form
    20,545.38/28,303.43 = 19,544.85/x
  3. Step 3: Cross multiply
    20,545.38x = 28,303.43 × 19,544.85
  4. Step 4: Simplify right side
    20,545.38x = 553,186,196.11
  5. Step 5: Solve for x
    x = 553,186,196.11/20,545.38
  6. Step 6: Final answer
    x = 26,925.09

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Half scale
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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.