Home / 22,742.26-31,382.04-12,670.30

Finding the Fourth Proportional to 22,742.26, 31,382.04 and 12,670.30

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Solution

The fourth proportional to 22,742.26, 31,382.04 and 12,670.30 is: 17,483.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,742.26 : 31,382.04 = 12,670.30 : x
  2. Step 2: Convert to fraction form
    22,742.26/31,382.04 = 12,670.30/x
  3. Step 3: Cross multiply
    22,742.26x = 31,382.04 × 12,670.30
  4. Step 4: Simplify right side
    22,742.26x = 397,619,861.41
  5. Step 5: Solve for x
    x = 397,619,861.41/22,742.26
  6. Step 6: Final answer
    x = 17,483.74

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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.