Home / 28,325.69-42,488.52-13,489.62

Finding the Fourth Proportional to 28,325.69, 42,488.52 and 13,489.62

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Solution

The fourth proportional to 28,325.69, 42,488.52 and 13,489.62 is: 20,234.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,325.69 : 42,488.52 = 13,489.62 : x
  2. Step 2: Convert to fraction form
    28,325.69/42,488.52 = 13,489.62/x
  3. Step 3: Cross multiply
    28,325.69x = 42,488.52 × 13,489.62
  4. Step 4: Simplify right side
    28,325.69x = 573,153,989.16
  5. Step 5: Solve for x
    x = 573,153,989.16/28,325.69
  6. Step 6: Final answer
    x = 20,234.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.