Home / 29,148.11-40,220.82-18,388.93

Finding the Fourth Proportional to 29,148.11, 40,220.82 and 18,388.93

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Solution

The fourth proportional to 29,148.11, 40,220.82 and 18,388.93 is: 25,374.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,148.11 : 40,220.82 = 18,388.93 : x
  2. Step 2: Convert to fraction form
    29,148.11/40,220.82 = 18,388.93/x
  3. Step 3: Cross multiply
    29,148.11x = 40,220.82 × 18,388.93
  4. Step 4: Simplify right side
    29,148.11x = 739,617,674.01
  5. Step 5: Solve for x
    x = 739,617,674.01/29,148.11
  6. Step 6: Final answer
    x = 25,374.46

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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.