Home / 43,285.70-64,916.40-13,712.60

Finding the Fourth Proportional to 43,285.70, 64,916.40 and 13,712.60

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Solution

The fourth proportional to 43,285.70, 64,916.40 and 13,712.60 is: 20,565.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,285.70 : 64,916.40 = 13,712.60 : x
  2. Step 2: Convert to fraction form
    43,285.70/64,916.40 = 13,712.60/x
  3. Step 3: Cross multiply
    43,285.70x = 64,916.40 × 13,712.60
  4. Step 4: Simplify right side
    43,285.70x = 890,172,626.64
  5. Step 5: Solve for x
    x = 890,172,626.64/43,285.70
  6. Step 6: Final answer
    x = 20,565.05

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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.