Home / 20,254.35-30,381.39-10,898.77

Finding the Fourth Proportional to 20,254.35, 30,381.39 and 10,898.77

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Solution

The fourth proportional to 20,254.35, 30,381.39 and 10,898.77 is: 16,348.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,254.35 : 30,381.39 = 10,898.77 : x
  2. Step 2: Convert to fraction form
    20,254.35/30,381.39 = 10,898.77/x
  3. Step 3: Cross multiply
    20,254.35x = 30,381.39 × 10,898.77
  4. Step 4: Simplify right side
    20,254.35x = 331,119,781.89
  5. Step 5: Solve for x
    x = 331,119,781.89/20,254.35
  6. Step 6: Final answer
    x = 16,348.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.