Home / 37,939.48-56,918.16-12,979.80

Finding the Fourth Proportional to 37,939.48, 56,918.16 and 12,979.80

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Solution

The fourth proportional to 37,939.48, 56,918.16 and 12,979.80 is: 19,472.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,939.48 : 56,918.16 = 12,979.80 : x
  2. Step 2: Convert to fraction form
    37,939.48/56,918.16 = 12,979.80/x
  3. Step 3: Cross multiply
    37,939.48x = 56,918.16 × 12,979.80
  4. Step 4: Simplify right side
    37,939.48x = 738,786,333.17
  5. Step 5: Solve for x
    x = 738,786,333.17/37,939.48
  6. Step 6: Final answer
    x = 19,472.76

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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.