Home / 22,390.04-30,897.66-12,958.76

Finding the Fourth Proportional to 22,390.04, 30,897.66 and 12,958.76

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Solution

The fourth proportional to 22,390.04, 30,897.66 and 12,958.76 is: 17,882.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,390.04 : 30,897.66 = 12,958.76 : x
  2. Step 2: Convert to fraction form
    22,390.04/30,897.66 = 12,958.76/x
  3. Step 3: Cross multiply
    22,390.04x = 30,897.66 × 12,958.76
  4. Step 4: Simplify right side
    22,390.04x = 400,395,360.50
  5. Step 5: Solve for x
    x = 400,395,360.50/22,390.04
  6. Step 6: Final answer
    x = 17,882.74

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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.