Home / 28,315.63-42,471.28-8,594.29

Finding the Fourth Proportional to 28,315.63, 42,471.28 and 8,594.29

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Solution

The fourth proportional to 28,315.63, 42,471.28 and 8,594.29 is: 12,890.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,315.63 : 42,471.28 = 8,594.29 : x
  2. Step 2: Convert to fraction form
    28,315.63/42,471.28 = 8,594.29/x
  3. Step 3: Cross multiply
    28,315.63x = 42,471.28 × 8,594.29
  4. Step 4: Simplify right side
    28,315.63x = 365,010,496.99
  5. Step 5: Solve for x
    x = 365,010,496.99/28,315.63
  6. Step 6: Final answer
    x = 12,890.78

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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.