Home / 40,285.81-60,431.96-13,631.55

Finding the Fourth Proportional to 40,285.81, 60,431.96 and 13,631.55

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Solution

The fourth proportional to 40,285.81, 60,431.96 and 13,631.55 is: 20,448.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,285.81 : 60,431.96 = 13,631.55 : x
  2. Step 2: Convert to fraction form
    40,285.81/60,431.96 = 13,631.55/x
  3. Step 3: Cross multiply
    40,285.81x = 60,431.96 × 13,631.55
  4. Step 4: Simplify right side
    40,285.81x = 823,781,284.34
  5. Step 5: Solve for x
    x = 823,781,284.34/40,285.81
  6. Step 6: Final answer
    x = 20,448.42

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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.