Home / 40,155.42-55,412.99-23,160.36

Finding the Fourth Proportional to 40,155.42, 55,412.99 and 23,160.36

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Solution

The fourth proportional to 40,155.42, 55,412.99 and 23,160.36 is: 31,960.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,155.42 : 55,412.99 = 23,160.36 : x
  2. Step 2: Convert to fraction form
    40,155.42/55,412.99 = 23,160.36/x
  3. Step 3: Cross multiply
    40,155.42x = 55,412.99 × 23,160.36
  4. Step 4: Simplify right side
    40,155.42x = 1,283,384,681.27
  5. Step 5: Solve for x
    x = 1,283,384,681.27/40,155.42
  6. Step 6: Final answer
    x = 31,960.43

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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.