Home / 28,592.32-39,457.80-15,845.92

Finding the Fourth Proportional to 28,592.32, 39,457.80 and 15,845.92

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Solution

The fourth proportional to 28,592.32, 39,457.80 and 15,845.92 is: 21,867.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,592.32 : 39,457.80 = 15,845.92 : x
  2. Step 2: Convert to fraction form
    28,592.32/39,457.80 = 15,845.92/x
  3. Step 3: Cross multiply
    28,592.32x = 39,457.80 × 15,845.92
  4. Step 4: Simplify right side
    28,592.32x = 625,245,142.18
  5. Step 5: Solve for x
    x = 625,245,142.18/28,592.32
  6. Step 6: Final answer
    x = 21,867.59

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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.