Home / 28,334.63-42,490.59-8,609.51

Finding the Fourth Proportional to 28,334.63, 42,490.59 and 8,609.51

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Solution

The fourth proportional to 28,334.63, 42,490.59 and 8,609.51 is: 12,910.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334.63 : 42,490.59 = 8,609.51 : x
  2. Step 2: Convert to fraction form
    28,334.63/42,490.59 = 8,609.51/x
  3. Step 3: Cross multiply
    28,334.63x = 42,490.59 × 8,609.51
  4. Step 4: Simplify right side
    28,334.63x = 365,822,947.06
  5. Step 5: Solve for x
    x = 365,822,947.06/28,334.63
  6. Step 6: Final answer
    x = 12,910.81

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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.