Home / 39,779.24-54,884.12-25,640.26

Finding the Fourth Proportional to 39,779.24, 54,884.12 and 25,640.26

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Solution

The fourth proportional to 39,779.24, 54,884.12 and 25,640.26 is: 35,376.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,779.24 : 54,884.12 = 25,640.26 : x
  2. Step 2: Convert to fraction form
    39,779.24/54,884.12 = 25,640.26/x
  3. Step 3: Cross multiply
    39,779.24x = 54,884.12 × 25,640.26
  4. Step 4: Simplify right side
    39,779.24x = 1,407,243,106.67
  5. Step 5: Solve for x
    x = 1,407,243,106.67/39,779.24
  6. Step 6: Final answer
    x = 35,376.32

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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.