Home / 20,083.84-30,125.76-14,136.40

Finding the Fourth Proportional to 20,083.84, 30,125.76 and 14,136.40

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Solution

The fourth proportional to 20,083.84, 30,125.76 and 14,136.40 is: 21,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.84 : 30,125.76 = 14,136.40 : x
  2. Step 2: Convert to fraction form
    20,083.84/30,125.76 = 14,136.40/x
  3. Step 3: Cross multiply
    20,083.84x = 30,125.76 × 14,136.40
  4. Step 4: Simplify right side
    20,083.84x = 425,869,793.66
  5. Step 5: Solve for x
    x = 425,869,793.66/20,083.84
  6. Step 6: Final answer
    x = 21,204.60

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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.