Home / 29,545.84-40,782.35-18,218.89

Finding the Fourth Proportional to 29,545.84, 40,782.35 and 18,218.89

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Solution

The fourth proportional to 29,545.84, 40,782.35 and 18,218.89 is: 25,147.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,545.84 : 40,782.35 = 18,218.89 : x
  2. Step 2: Convert to fraction form
    29,545.84/40,782.35 = 18,218.89/x
  3. Step 3: Cross multiply
    29,545.84x = 40,782.35 × 18,218.89
  4. Step 4: Simplify right side
    29,545.84x = 743,009,092.18
  5. Step 5: Solve for x
    x = 743,009,092.18/29,545.84
  6. Step 6: Final answer
    x = 25,147.67

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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.