Home / 36,006.88-49,681.56-20,890.80

Finding the Fourth Proportional to 36,006.88, 49,681.56 and 20,890.80

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Solution

The fourth proportional to 36,006.88, 49,681.56 and 20,890.80 is: 28,824.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,006.88 : 49,681.56 = 20,890.80 : x
  2. Step 2: Convert to fraction form
    36,006.88/49,681.56 = 20,890.80/x
  3. Step 3: Cross multiply
    36,006.88x = 49,681.56 × 20,890.80
  4. Step 4: Simplify right side
    36,006.88x = 1,037,887,533.65
  5. Step 5: Solve for x
    x = 1,037,887,533.65/36,006.88
  6. Step 6: Final answer
    x = 28,824.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.