Home / 28,463.68-39,281.40-16,530.76

Finding the Fourth Proportional to 28,463.68, 39,281.40 and 16,530.76

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Solution

The fourth proportional to 28,463.68, 39,281.40 and 16,530.76 is: 22,813.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,463.68 : 39,281.40 = 16,530.76 : x
  2. Step 2: Convert to fraction form
    28,463.68/39,281.40 = 16,530.76/x
  3. Step 3: Cross multiply
    28,463.68x = 39,281.40 × 16,530.76
  4. Step 4: Simplify right side
    28,463.68x = 649,351,395.86
  5. Step 5: Solve for x
    x = 649,351,395.86/28,463.68
  6. Step 6: Final answer
    x = 22,813.33

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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.