Home / 20,081.40-30,122.10-14,897.40

Finding the Fourth Proportional to 20,081.40, 30,122.10 and 14,897.40

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Solution

The fourth proportional to 20,081.40, 30,122.10 and 14,897.40 is: 22,346.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.40 : 30,122.10 = 14,897.40 : x
  2. Step 2: Convert to fraction form
    20,081.40/30,122.10 = 14,897.40/x
  3. Step 3: Cross multiply
    20,081.40x = 30,122.10 × 14,897.40
  4. Step 4: Simplify right side
    20,081.40x = 448,740,972.54
  5. Step 5: Solve for x
    x = 448,740,972.54/20,081.40
  6. Step 6: Final answer
    x = 22,346.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.