Home / 20,488.27-28,281.76-16,013.48

Finding the Fourth Proportional to 20,488.27, 28,281.76 and 16,013.48

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Solution

The fourth proportional to 20,488.27, 28,281.76 and 16,013.48 is: 22,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488.27 : 28,281.76 = 16,013.48 : x
  2. Step 2: Convert to fraction form
    20,488.27/28,281.76 = 16,013.48/x
  3. Step 3: Cross multiply
    20,488.27x = 28,281.76 × 16,013.48
  4. Step 4: Simplify right side
    20,488.27x = 452,889,176.65
  5. Step 5: Solve for x
    x = 452,889,176.65/20,488.27
  6. Step 6: Final answer
    x = 22,104.80

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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.