Home / 43,594.15-65,391.83-12,429.40

Finding the Fourth Proportional to 43,594.15, 65,391.83 and 12,429.40

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Solution

The fourth proportional to 43,594.15, 65,391.83 and 12,429.40 is: 18,644.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,594.15 : 65,391.83 = 12,429.40 : x
  2. Step 2: Convert to fraction form
    43,594.15/65,391.83 = 12,429.40/x
  3. Step 3: Cross multiply
    43,594.15x = 65,391.83 × 12,429.40
  4. Step 4: Simplify right side
    43,594.15x = 812,781,032.79
  5. Step 5: Solve for x
    x = 812,781,032.79/43,594.15
  6. Step 6: Final answer
    x = 18,644.27

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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.