Home / 22,745.84-31,381.85-12,672.34

Finding the Fourth Proportional to 22,745.84, 31,381.85 and 12,672.34

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Solution

The fourth proportional to 22,745.84, 31,381.85 and 12,672.34 is: 17,483.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,745.84 : 31,381.85 = 12,672.34 : x
  2. Step 2: Convert to fraction form
    22,745.84/31,381.85 = 12,672.34/x
  3. Step 3: Cross multiply
    22,745.84x = 31,381.85 × 12,672.34
  4. Step 4: Simplify right side
    22,745.84x = 397,681,426.26
  5. Step 5: Solve for x
    x = 397,681,426.26/22,745.84
  6. Step 6: Final answer
    x = 17,483.70

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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.