Home / 28,455.68-42,688.98-10,924.12

Finding the Fourth Proportional to 28,455.68, 42,688.98 and 10,924.12

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Solution

The fourth proportional to 28,455.68, 42,688.98 and 10,924.12 is: 16,388.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,455.68 : 42,688.98 = 10,924.12 : x
  2. Step 2: Convert to fraction form
    28,455.68/42,688.98 = 10,924.12/x
  3. Step 3: Cross multiply
    28,455.68x = 42,688.98 × 10,924.12
  4. Step 4: Simplify right side
    28,455.68x = 466,339,540.20
  5. Step 5: Solve for x
    x = 466,339,540.20/28,455.68
  6. Step 6: Final answer
    x = 16,388.28

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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.