Home / 28,865.61-43,302.96-12,225.69

Finding the Fourth Proportional to 28,865.61, 43,302.96 and 12,225.69

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Solution

The fourth proportional to 28,865.61, 43,302.96 and 12,225.69 is: 18,340.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,865.61 : 43,302.96 = 12,225.69 : x
  2. Step 2: Convert to fraction form
    28,865.61/43,302.96 = 12,225.69/x
  3. Step 3: Cross multiply
    28,865.61x = 43,302.96 × 12,225.69
  4. Step 4: Simplify right side
    28,865.61x = 529,408,565.04
  5. Step 5: Solve for x
    x = 529,408,565.04/28,865.61
  6. Step 6: Final answer
    x = 18,340.46

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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.