Home / 21,344.53-31,986.27-15,677.74

Finding the Fourth Proportional to 21,344.53, 31,986.27 and 15,677.74

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Solution

The fourth proportional to 21,344.53, 31,986.27 and 15,677.74 is: 23,494.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,344.53 : 31,986.27 = 15,677.74 : x
  2. Step 2: Convert to fraction form
    21,344.53/31,986.27 = 15,677.74/x
  3. Step 3: Cross multiply
    21,344.53x = 31,986.27 × 15,677.74
  4. Step 4: Simplify right side
    21,344.53x = 501,472,424.63
  5. Step 5: Solve for x
    x = 501,472,424.63/21,344.53
  6. Step 6: Final answer
    x = 23,494.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.