Home / 20,177.74-30,282.40-13,981.24

Finding the Fourth Proportional to 20,177.74, 30,282.40 and 13,981.24

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Solution

The fourth proportional to 20,177.74, 30,282.40 and 13,981.24 is: 20,982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.74 : 30,282.40 = 13,981.24 : x
  2. Step 2: Convert to fraction form
    20,177.74/30,282.40 = 13,981.24/x
  3. Step 3: Cross multiply
    20,177.74x = 30,282.40 × 13,981.24
  4. Step 4: Simplify right side
    20,177.74x = 423,385,557.51
  5. Step 5: Solve for x
    x = 423,385,557.51/20,177.74
  6. Step 6: Final answer
    x = 20,982.80

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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.