Home / 28,037.28-42,055.52-8,329.20

Finding the Fourth Proportional to 28,037.28, 42,055.52 and 8,329.20

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Solution

The fourth proportional to 28,037.28, 42,055.52 and 8,329.20 is: 12,493.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,037.28 : 42,055.52 = 8,329.20 : x
  2. Step 2: Convert to fraction form
    28,037.28/42,055.52 = 8,329.20/x
  3. Step 3: Cross multiply
    28,037.28x = 42,055.52 × 8,329.20
  4. Step 4: Simplify right side
    28,037.28x = 350,288,837.18
  5. Step 5: Solve for x
    x = 350,288,837.18/28,037.28
  6. Step 6: Final answer
    x = 12,493.68

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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.