Home / 22,188.45-30,602.70-14,231.40

Finding the Fourth Proportional to 22,188.45, 30,602.70 and 14,231.40

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Solution

The fourth proportional to 22,188.45, 30,602.70 and 14,231.40 is: 19,628.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,188.45 : 30,602.70 = 14,231.40 : x
  2. Step 2: Convert to fraction form
    22,188.45/30,602.70 = 14,231.40/x
  3. Step 3: Cross multiply
    22,188.45x = 30,602.70 × 14,231.40
  4. Step 4: Simplify right side
    22,188.45x = 435,519,264.78
  5. Step 5: Solve for x
    x = 435,519,264.78/22,188.45
  6. Step 6: Final answer
    x = 19,628.20

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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.