Home / 29,302.96-40,438.28-15,874.21

Finding the Fourth Proportional to 29,302.96, 40,438.28 and 15,874.21

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Solution

The fourth proportional to 29,302.96, 40,438.28 and 15,874.21 is: 21,906.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,302.96 : 40,438.28 = 15,874.21 : x
  2. Step 2: Convert to fraction form
    29,302.96/40,438.28 = 15,874.21/x
  3. Step 3: Cross multiply
    29,302.96x = 40,438.28 × 15,874.21
  4. Step 4: Simplify right side
    29,302.96x = 641,925,748.76
  5. Step 5: Solve for x
    x = 641,925,748.76/29,302.96
  6. Step 6: Final answer
    x = 21,906.52

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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.