Home / 39,423.58-59,136.72-12,768.92

Finding the Fourth Proportional to 39,423.58, 59,136.72 and 12,768.92

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Solution

The fourth proportional to 39,423.58, 59,136.72 and 12,768.92 is: 19,153.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,423.58 : 59,136.72 = 12,768.92 : x
  2. Step 2: Convert to fraction form
    39,423.58/59,136.72 = 12,768.92/x
  3. Step 3: Cross multiply
    39,423.58x = 59,136.72 × 12,768.92
  4. Step 4: Simplify right side
    39,423.58x = 755,112,046.74
  5. Step 5: Solve for x
    x = 755,112,046.74/39,423.58
  6. Step 6: Final answer
    x = 19,153.82

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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.