Home / 23,116.53-31,890.67-13,551.57

Finding the Fourth Proportional to 23,116.53, 31,890.67 and 13,551.57

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Solution

The fourth proportional to 23,116.53, 31,890.67 and 13,551.57 is: 18,695.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,116.53 : 31,890.67 = 13,551.57 : x
  2. Step 2: Convert to fraction form
    23,116.53/31,890.67 = 13,551.57/x
  3. Step 3: Cross multiply
    23,116.53x = 31,890.67 × 13,551.57
  4. Step 4: Simplify right side
    23,116.53x = 432,168,646.85
  5. Step 5: Solve for x
    x = 432,168,646.85/23,116.53
  6. Step 6: Final answer
    x = 18,695.22

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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.