Home / 28,180.01-42,276.49-8,458.94

Finding the Fourth Proportional to 28,180.01, 42,276.49 and 8,458.94

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Solution

The fourth proportional to 28,180.01, 42,276.49 and 8,458.94 is: 12,690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,180.01 : 42,276.49 = 8,458.94 : x
  2. Step 2: Convert to fraction form
    28,180.01/42,276.49 = 8,458.94/x
  3. Step 3: Cross multiply
    28,180.01x = 42,276.49 × 8,458.94
  4. Step 4: Simplify right side
    28,180.01x = 357,614,038.64
  5. Step 5: Solve for x
    x = 357,614,038.64/28,180.01
  6. Step 6: Final answer
    x = 12,690.35

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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.