Home / 18,395.48-25,381.92-12,031.40

Finding the Fourth Proportional to 18,395.48, 25,381.92 and 12,031.40

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Solution

The fourth proportional to 18,395.48, 25,381.92 and 12,031.40 is: 16,600.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,395.48 : 25,381.92 = 12,031.40 : x
  2. Step 2: Convert to fraction form
    18,395.48/25,381.92 = 12,031.40/x
  3. Step 3: Cross multiply
    18,395.48x = 25,381.92 × 12,031.40
  4. Step 4: Simplify right side
    18,395.48x = 305,380,032.29
  5. Step 5: Solve for x
    x = 305,380,032.29/18,395.48
  6. Step 6: Final answer
    x = 16,600.82

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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.