Home / 22,308.52-30,782.26-12,875.24

Finding the Fourth Proportional to 22,308.52, 30,782.26 and 12,875.24

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Solution

The fourth proportional to 22,308.52, 30,782.26 and 12,875.24 is: 17,765.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,308.52 : 30,782.26 = 12,875.24 : x
  2. Step 2: Convert to fraction form
    22,308.52/30,782.26 = 12,875.24/x
  3. Step 3: Cross multiply
    22,308.52x = 30,782.26 × 12,875.24
  4. Step 4: Simplify right side
    22,308.52x = 396,328,985.24
  5. Step 5: Solve for x
    x = 396,328,985.24/22,308.52
  6. Step 6: Final answer
    x = 17,765.81

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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.