Home / 22,836.20-31,513.88-12,764.64

Finding the Fourth Proportional to 22,836.20, 31,513.88 and 12,764.64

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Solution

The fourth proportional to 22,836.20, 31,513.88 and 12,764.64 is: 17,615.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,836.20 : 31,513.88 = 12,764.64 : x
  2. Step 2: Convert to fraction form
    22,836.20/31,513.88 = 12,764.64/x
  3. Step 3: Cross multiply
    22,836.20x = 31,513.88 × 12,764.64
  4. Step 4: Simplify right side
    22,836.20x = 402,263,333.20
  5. Step 5: Solve for x
    x = 402,263,333.20/22,836.20
  6. Step 6: Final answer
    x = 17,615.16

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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.