Home / 28,301.09-42,451.68-8,579.66

Finding the Fourth Proportional to 28,301.09, 42,451.68 and 8,579.66

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Solution

The fourth proportional to 28,301.09, 42,451.68 and 8,579.66 is: 12,869.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,301.09 : 42,451.68 = 8,579.66 : x
  2. Step 2: Convert to fraction form
    28,301.09/42,451.68 = 8,579.66/x
  3. Step 3: Cross multiply
    28,301.09x = 42,451.68 × 8,579.66
  4. Step 4: Simplify right side
    28,301.09x = 364,220,980.83
  5. Step 5: Solve for x
    x = 364,220,980.83/28,301.09
  6. Step 6: Final answer
    x = 12,869.50

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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.