Home / 28,366.20-42,533.10-8,641.80

Finding the Fourth Proportional to 28,366.20, 42,533.10 and 8,641.80

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Solution

The fourth proportional to 28,366.20, 42,533.10 and 8,641.80 is: 12,957.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.20 : 42,533.10 = 8,641.80 : x
  2. Step 2: Convert to fraction form
    28,366.20/42,533.10 = 8,641.80/x
  3. Step 3: Cross multiply
    28,366.20x = 42,533.10 × 8,641.80
  4. Step 4: Simplify right side
    28,366.20x = 367,562,543.58
  5. Step 5: Solve for x
    x = 367,562,543.58/28,366.20
  6. Step 6: Final answer
    x = 12,957.76

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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.