Home / 22,453.07-30,985.47-12,381.93

Finding the Fourth Proportional to 22,453.07, 30,985.47 and 12,381.93

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Solution

The fourth proportional to 22,453.07, 30,985.47 and 12,381.93 is: 17,087.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,453.07 : 30,985.47 = 12,381.93 : x
  2. Step 2: Convert to fraction form
    22,453.07/30,985.47 = 12,381.93/x
  3. Step 3: Cross multiply
    22,453.07x = 30,985.47 × 12,381.93
  4. Step 4: Simplify right side
    22,453.07x = 383,659,920.56
  5. Step 5: Solve for x
    x = 383,659,920.56/22,453.07
  6. Step 6: Final answer
    x = 17,087.20

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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.