Home / 28,271.50-39,011.76-16,338.68

Finding the Fourth Proportional to 28,271.50, 39,011.76 and 16,338.68

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Solution

The fourth proportional to 28,271.50, 39,011.76 and 16,338.68 is: 22,545.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,271.50 : 39,011.76 = 16,338.68 : x
  2. Step 2: Convert to fraction form
    28,271.50/39,011.76 = 16,338.68/x
  3. Step 3: Cross multiply
    28,271.50x = 39,011.76 × 16,338.68
  4. Step 4: Simplify right side
    28,271.50x = 637,400,614.11
  5. Step 5: Solve for x
    x = 637,400,614.11/28,271.50
  6. Step 6: Final answer
    x = 22,545.70

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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.