Home / 28,854.56-43,298.76-12,213.56

Finding the Fourth Proportional to 28,854.56, 43,298.76 and 12,213.56

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Solution

The fourth proportional to 28,854.56, 43,298.76 and 12,213.56 is: 18,327.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,854.56 : 43,298.76 = 12,213.56 : x
  2. Step 2: Convert to fraction form
    28,854.56/43,298.76 = 12,213.56/x
  3. Step 3: Cross multiply
    28,854.56x = 43,298.76 × 12,213.56
  4. Step 4: Simplify right side
    28,854.56x = 528,832,003.19
  5. Step 5: Solve for x
    x = 528,832,003.19/28,854.56
  6. Step 6: Final answer
    x = 18,327.50

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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.