Home / 29,009.11-40,045.22-18,415.03

Finding the Fourth Proportional to 29,009.11, 40,045.22 and 18,415.03

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Solution

The fourth proportional to 29,009.11, 40,045.22 and 18,415.03 is: 25,420.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,009.11 : 40,045.22 = 18,415.03 : x
  2. Step 2: Convert to fraction form
    29,009.11/40,045.22 = 18,415.03/x
  3. Step 3: Cross multiply
    29,009.11x = 40,045.22 × 18,415.03
  4. Step 4: Simplify right side
    29,009.11x = 737,433,927.66
  5. Step 5: Solve for x
    x = 737,433,927.66/29,009.11
  6. Step 6: Final answer
    x = 25,420.77

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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.