Home / 39,779.64-59,558.10-21,270.84

Finding the Fourth Proportional to 39,779.64, 59,558.10 and 21,270.84

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Solution

The fourth proportional to 39,779.64, 59,558.10 and 21,270.84 is: 31,846.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,779.64 : 59,558.10 = 21,270.84 : x
  2. Step 2: Convert to fraction form
    39,779.64/59,558.10 = 21,270.84/x
  3. Step 3: Cross multiply
    39,779.64x = 59,558.10 × 21,270.84
  4. Step 4: Simplify right side
    39,779.64x = 1,266,850,815.80
  5. Step 5: Solve for x
    x = 1,266,850,815.80/39,779.64
  6. Step 6: Final answer
    x = 31,846.71

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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.