Home / 30,680.61-42,360.17-22,615.23

Finding the Fourth Proportional to 30,680.61, 42,360.17 and 22,615.23

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Solution

The fourth proportional to 30,680.61, 42,360.17 and 22,615.23 is: 31,224.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,680.61 : 42,360.17 = 22,615.23 : x
  2. Step 2: Convert to fraction form
    30,680.61/42,360.17 = 22,615.23/x
  3. Step 3: Cross multiply
    30,680.61x = 42,360.17 × 22,615.23
  4. Step 4: Simplify right side
    30,680.61x = 957,984,874.31
  5. Step 5: Solve for x
    x = 957,984,874.31/30,680.61
  6. Step 6: Final answer
    x = 31,224.44

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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.