Home / 28,859.60-43,293.95-12,219.72

Finding the Fourth Proportional to 28,859.60, 43,293.95 and 12,219.72

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Solution

The fourth proportional to 28,859.60, 43,293.95 and 12,219.72 is: 18,331.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,859.60 : 43,293.95 = 12,219.72 : x
  2. Step 2: Convert to fraction form
    28,859.60/43,293.95 = 12,219.72/x
  3. Step 3: Cross multiply
    28,859.60x = 43,293.95 × 12,219.72
  4. Step 4: Simplify right side
    28,859.60x = 529,039,885.60
  5. Step 5: Solve for x
    x = 529,039,885.60/28,859.60
  6. Step 6: Final answer
    x = 18,331.51

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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.