Home / 21,024,076.80-31,477,132.80-20,434,252.80

Finding the Fourth Proportional to 21,024,076.80, 31,477,132.80 and 20,434,252.80

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Solution

The fourth proportional to 21,024,076.80, 31,477,132.80 and 20,434,252.80 is: 30,594,051.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,024,076.80 : 31,477,132.80 = 20,434,252.80 : x
  2. Step 2: Convert to fraction form
    21,024,076.80/31,477,132.80 = 20,434,252.80/x
  3. Step 3: Cross multiply
    21,024,076.80x = 31,477,132.80 × 20,434,252.80
  4. Step 4: Simplify right side
    21,024,076.80x = 643,211,689,054,371.88
  5. Step 5: Solve for x
    x = 643,211,689,054,371.88/21,024,076.80
  6. Step 6: Final answer
    x = 30,594,051.53

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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.