Home / 29,328.76-40,435.62-18,699.94

Finding the Fourth Proportional to 29,328.76, 40,435.62 and 18,699.94

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Solution

The fourth proportional to 29,328.76, 40,435.62 and 18,699.94 is: 25,781.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,328.76 : 40,435.62 = 18,699.94 : x
  2. Step 2: Convert to fraction form
    29,328.76/40,435.62 = 18,699.94/x
  3. Step 3: Cross multiply
    29,328.76x = 40,435.62 × 18,699.94
  4. Step 4: Simplify right side
    29,328.76x = 756,143,667.86
  5. Step 5: Solve for x
    x = 756,143,667.86/29,328.76
  6. Step 6: Final answer
    x = 25,781.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.