Home / 20,215.23-27,880.52-16,972.53

Finding the Fourth Proportional to 20,215.23, 27,880.52 and 16,972.53

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Solution

The fourth proportional to 20,215.23, 27,880.52 and 16,972.53 is: 23,408.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.23 : 27,880.52 = 16,972.53 : x
  2. Step 2: Convert to fraction form
    20,215.23/27,880.52 = 16,972.53/x
  3. Step 3: Cross multiply
    20,215.23x = 27,880.52 × 16,972.53
  4. Step 4: Simplify right side
    20,215.23x = 473,202,877.25
  5. Step 5: Solve for x
    x = 473,202,877.25/20,215.23
  6. Step 6: Final answer
    x = 23,408.24

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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.