Home / 21,983.07-30,337.20-12,552.51

Finding the Fourth Proportional to 21,983.07, 30,337.20 and 12,552.51

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Solution

The fourth proportional to 21,983.07, 30,337.20 and 12,552.51 is: 17,322.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,983.07 : 30,337.20 = 12,552.51 : x
  2. Step 2: Convert to fraction form
    21,983.07/30,337.20 = 12,552.51/x
  3. Step 3: Cross multiply
    21,983.07x = 30,337.20 × 12,552.51
  4. Step 4: Simplify right side
    21,983.07x = 380,808,006.37
  5. Step 5: Solve for x
    x = 380,808,006.37/21,983.07
  6. Step 6: Final answer
    x = 17,322.79

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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.