Home / 22,070.22-30,432.16-20,670.54

Finding the Fourth Proportional to 22,070.22, 30,432.16 and 20,670.54

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Solution

The fourth proportional to 22,070.22, 30,432.16 and 20,670.54 is: 28,502.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,070.22 : 30,432.16 = 20,670.54 : x
  2. Step 2: Convert to fraction form
    22,070.22/30,432.16 = 20,670.54/x
  3. Step 3: Cross multiply
    22,070.22x = 30,432.16 × 20,670.54
  4. Step 4: Simplify right side
    22,070.22x = 629,049,180.57
  5. Step 5: Solve for x
    x = 629,049,180.57/22,070.22
  6. Step 6: Final answer
    x = 28,502.17

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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.