Home / 23,165.72-31,968.74-12,555.35

Finding the Fourth Proportional to 23,165.72, 31,968.74 and 12,555.35

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Solution

The fourth proportional to 23,165.72, 31,968.74 and 12,555.35 is: 17,326.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,165.72 : 31,968.74 = 12,555.35 : x
  2. Step 2: Convert to fraction form
    23,165.72/31,968.74 = 12,555.35/x
  3. Step 3: Cross multiply
    23,165.72x = 31,968.74 × 12,555.35
  4. Step 4: Simplify right side
    23,165.72x = 401,378,528.53
  5. Step 5: Solve for x
    x = 401,378,528.53/23,165.72
  6. Step 6: Final answer
    x = 17,326.40

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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.