Home / 18,985.56-28,478.33-14,819.32

Finding the Fourth Proportional to 18,985.56, 28,478.33 and 14,819.32

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Solution

The fourth proportional to 18,985.56, 28,478.33 and 14,819.32 is: 22,228.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.56 : 28,478.33 = 14,819.32 : x
  2. Step 2: Convert to fraction form
    18,985.56/28,478.33 = 14,819.32/x
  3. Step 3: Cross multiply
    18,985.56x = 28,478.33 × 14,819.32
  4. Step 4: Simplify right side
    18,985.56x = 422,029,502.41
  5. Step 5: Solve for x
    x = 422,029,502.41/18,985.56
  6. Step 6: Final answer
    x = 22,228.98

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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.