Home / 20,437.52-30,639.56-10,579.61

Finding the Fourth Proportional to 20,437.52, 30,639.56 and 10,579.61

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Solution

The fourth proportional to 20,437.52, 30,639.56 and 10,579.61 is: 15,860.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.52 : 30,639.56 = 10,579.61 : x
  2. Step 2: Convert to fraction form
    20,437.52/30,639.56 = 10,579.61/x
  3. Step 3: Cross multiply
    20,437.52x = 30,639.56 × 10,579.61
  4. Step 4: Simplify right side
    20,437.52x = 324,154,389.28
  5. Step 5: Solve for x
    x = 324,154,389.28/20,437.52
  6. Step 6: Final answer
    x = 15,860.75

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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.