Home / 39,121.08-58,681.38-12,825.64

Finding the Fourth Proportional to 39,121.08, 58,681.38 and 12,825.64

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Solution

The fourth proportional to 39,121.08, 58,681.38 and 12,825.64 is: 19,238.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,121.08 : 58,681.38 = 12,825.64 : x
  2. Step 2: Convert to fraction form
    39,121.08/58,681.38 = 12,825.64/x
  3. Step 3: Cross multiply
    39,121.08x = 58,681.38 × 12,825.64
  4. Step 4: Simplify right side
    39,121.08x = 752,626,254.58
  5. Step 5: Solve for x
    x = 752,626,254.58/39,121.08
  6. Step 6: Final answer
    x = 19,238.38

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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.