Home / 28,956.60-43,455.65-12,328.29

Finding the Fourth Proportional to 28,956.60, 43,455.65 and 12,328.29

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Solution

The fourth proportional to 28,956.60, 43,455.65 and 12,328.29 is: 18,501.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,956.60 : 43,455.65 = 12,328.29 : x
  2. Step 2: Convert to fraction form
    28,956.60/43,455.65 = 12,328.29/x
  3. Step 3: Cross multiply
    28,956.60x = 43,455.65 × 12,328.29
  4. Step 4: Simplify right side
    28,956.60x = 535,733,793.70
  5. Step 5: Solve for x
    x = 535,733,793.70/28,956.60
  6. Step 6: Final answer
    x = 18,501.27

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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.