Home / 28,659.56-39,558.66-18,588.64

Finding the Fourth Proportional to 28,659.56, 39,558.66 and 18,588.64

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Solution

The fourth proportional to 28,659.56, 39,558.66 and 18,588.64 is: 25,657.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,659.56 : 39,558.66 = 18,588.64 : x
  2. Step 2: Convert to fraction form
    28,659.56/39,558.66 = 18,588.64/x
  3. Step 3: Cross multiply
    28,659.56x = 39,558.66 × 18,588.64
  4. Step 4: Simplify right side
    28,659.56x = 735,341,689.62
  5. Step 5: Solve for x
    x = 735,341,689.62/28,659.56
  6. Step 6: Final answer
    x = 25,657.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.