Home / 49,658.40-74,488.41-12,218.58

Finding the Fourth Proportional to 49,658.40, 74,488.41 and 12,218.58

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Solution

The fourth proportional to 49,658.40, 74,488.41 and 12,218.58 is: 18,328.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,658.40 : 74,488.41 = 12,218.58 : x
  2. Step 2: Convert to fraction form
    49,658.40/74,488.41 = 12,218.58/x
  3. Step 3: Cross multiply
    49,658.40x = 74,488.41 × 12,218.58
  4. Step 4: Simplify right side
    49,658.40x = 910,142,596.66
  5. Step 5: Solve for x
    x = 910,142,596.66/49,658.40
  6. Step 6: Final answer
    x = 18,328.07

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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.