Home / 28,315.32-42,473.30-8,593.72

Finding the Fourth Proportional to 28,315.32, 42,473.30 and 8,593.72

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Solution

The fourth proportional to 28,315.32, 42,473.30 and 8,593.72 is: 12,890.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,315.32 : 42,473.30 = 8,593.72 : x
  2. Step 2: Convert to fraction form
    28,315.32/42,473.30 = 8,593.72/x
  3. Step 3: Cross multiply
    28,315.32x = 42,473.30 × 8,593.72
  4. Step 4: Simplify right side
    28,315.32x = 365,003,647.68
  5. Step 5: Solve for x
    x = 365,003,647.68/28,315.32
  6. Step 6: Final answer
    x = 12,890.68

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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.