Home / 40,155.75-55,338.54-29,403.91

Finding the Fourth Proportional to 40,155.75, 55,338.54 and 29,403.91

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Solution

The fourth proportional to 40,155.75, 55,338.54 and 29,403.91 is: 40,521.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,155.75 : 55,338.54 = 29,403.91 : x
  2. Step 2: Convert to fraction form
    40,155.75/55,338.54 = 29,403.91/x
  3. Step 3: Cross multiply
    40,155.75x = 55,338.54 × 29,403.91
  4. Step 4: Simplify right side
    40,155.75x = 1,627,169,574.00
  5. Step 5: Solve for x
    x = 1,627,169,574.00/40,155.75
  6. Step 6: Final answer
    x = 40,521.46

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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.