Home / 21,493,097.80-32,239,646.70-20,261,379.40

Finding the Fourth Proportional to 21,493,097.80, 32,239,646.70 and 20,261,379.40

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Solution

The fourth proportional to 21,493,097.80, 32,239,646.70 and 20,261,379.40 is: 30,392,069.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,493,097.80 : 32,239,646.70 = 20,261,379.40 : x
  2. Step 2: Convert to fraction form
    21,493,097.80/32,239,646.70 = 20,261,379.40/x
  3. Step 3: Cross multiply
    21,493,097.80x = 32,239,646.70 × 20,261,379.40
  4. Step 4: Simplify right side
    21,493,097.80x = 653,219,713,510,657.88
  5. Step 5: Solve for x
    x = 653,219,713,510,657.88/21,493,097.80
  6. Step 6: Final answer
    x = 30,392,069.10

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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.