Home / 28,876.23-43,257.51-18,985.32

Finding the Fourth Proportional to 28,876.23, 43,257.51 and 18,985.32

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Solution

The fourth proportional to 28,876.23, 43,257.51 and 18,985.32 is: 28,440.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,876.23 : 43,257.51 = 18,985.32 : x
  2. Step 2: Convert to fraction form
    28,876.23/43,257.51 = 18,985.32/x
  3. Step 3: Cross multiply
    28,876.23x = 43,257.51 × 18,985.32
  4. Step 4: Simplify right side
    28,876.23x = 821,257,669.75
  5. Step 5: Solve for x
    x = 821,257,669.75/28,876.23
  6. Step 6: Final answer
    x = 28,440.61

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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.