Home / 28,271.28-39,011.48-16,338.48

Finding the Fourth Proportional to 28,271.28, 39,011.48 and 16,338.48

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Solution

The fourth proportional to 28,271.28, 39,011.48 and 16,338.48 is: 22,545.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,271.28 : 39,011.48 = 16,338.48 : x
  2. Step 2: Convert to fraction form
    28,271.28/39,011.48 = 16,338.48/x
  3. Step 3: Cross multiply
    28,271.28x = 39,011.48 × 16,338.48
  4. Step 4: Simplify right side
    28,271.28x = 637,388,285.75
  5. Step 5: Solve for x
    x = 637,388,285.75/28,271.28
  6. Step 6: Final answer
    x = 22,545.43

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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.