Home / 22,265.86-30,730.26-12,705.70

Finding the Fourth Proportional to 22,265.86, 30,730.26 and 12,705.70

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Solution

The fourth proportional to 22,265.86, 30,730.26 and 12,705.70 is: 17,535.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,265.86 : 30,730.26 = 12,705.70 : x
  2. Step 2: Convert to fraction form
    22,265.86/30,730.26 = 12,705.70/x
  3. Step 3: Cross multiply
    22,265.86x = 30,730.26 × 12,705.70
  4. Step 4: Simplify right side
    22,265.86x = 390,449,464.48
  5. Step 5: Solve for x
    x = 390,449,464.48/22,265.86
  6. Step 6: Final answer
    x = 17,535.79

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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.