Home / 29,118.86-40,130.73-21,147.24

Finding the Fourth Proportional to 29,118.86, 40,130.73 and 21,147.24

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Solution

The fourth proportional to 29,118.86, 40,130.73 and 21,147.24 is: 29,144.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,118.86 : 40,130.73 = 21,147.24 : x
  2. Step 2: Convert to fraction form
    29,118.86/40,130.73 = 21,147.24/x
  3. Step 3: Cross multiply
    29,118.86x = 40,130.73 × 21,147.24
  4. Step 4: Simplify right side
    29,118.86x = 848,654,178.69
  5. Step 5: Solve for x
    x = 848,654,178.69/29,118.86
  6. Step 6: Final answer
    x = 29,144.49

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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.