Home / 38,428.95-57,638.55-12,136.35

Finding the Fourth Proportional to 38,428.95, 57,638.55 and 12,136.35

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Solution

The fourth proportional to 38,428.95, 57,638.55 and 12,136.35 is: 18,202.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,428.95 : 57,638.55 = 12,136.35 : x
  2. Step 2: Convert to fraction form
    38,428.95/57,638.55 = 12,136.35/x
  3. Step 3: Cross multiply
    38,428.95x = 57,638.55 × 12,136.35
  4. Step 4: Simplify right side
    38,428.95x = 699,521,616.29
  5. Step 5: Solve for x
    x = 699,521,616.29/38,428.95
  6. Step 6: Final answer
    x = 18,202.99

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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.