Home / 22,276.42-30,740.11-12,717.41

Finding the Fourth Proportional to 22,276.42, 30,740.11 and 12,717.41

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Solution

The fourth proportional to 22,276.42, 30,740.11 and 12,717.41 is: 17,549.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,276.42 : 30,740.11 = 12,717.41 : x
  2. Step 2: Convert to fraction form
    22,276.42/30,740.11 = 12,717.41/x
  3. Step 3: Cross multiply
    22,276.42x = 30,740.11 × 12,717.41
  4. Step 4: Simplify right side
    22,276.42x = 390,934,396.82
  5. Step 5: Solve for x
    x = 390,934,396.82/22,276.42
  6. Step 6: Final answer
    x = 17,549.25

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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.