Home / 28,328.52-42,491.16-10,800.12

Finding the Fourth Proportional to 28,328.52, 42,491.16 and 10,800.12

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Solution

The fourth proportional to 28,328.52, 42,491.16 and 10,800.12 is: 16,199.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,328.52 : 42,491.16 = 10,800.12 : x
  2. Step 2: Convert to fraction form
    28,328.52/42,491.16 = 10,800.12/x
  3. Step 3: Cross multiply
    28,328.52x = 42,491.16 × 10,800.12
  4. Step 4: Simplify right side
    28,328.52x = 458,909,626.94
  5. Step 5: Solve for x
    x = 458,909,626.94/28,328.52
  6. Step 6: Final answer
    x = 16,199.56

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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.