Home / 38,424.12-57,643.20-12,136.20

Finding the Fourth Proportional to 38,424.12, 57,643.20 and 12,136.20

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Solution

The fourth proportional to 38,424.12, 57,643.20 and 12,136.20 is: 18,206.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,424.12 : 57,643.20 = 12,136.20 : x
  2. Step 2: Convert to fraction form
    38,424.12/57,643.20 = 12,136.20/x
  3. Step 3: Cross multiply
    38,424.12x = 57,643.20 × 12,136.20
  4. Step 4: Simplify right side
    38,424.12x = 699,569,403.84
  5. Step 5: Solve for x
    x = 699,569,403.84/38,424.12
  6. Step 6: Final answer
    x = 18,206.52

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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.