Home / 21,785,028.60-32,677,542.90-20,793,005.40

Finding the Fourth Proportional to 21,785,028.60, 32,677,542.90 and 20,793,005.40

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Solution

The fourth proportional to 21,785,028.60, 32,677,542.90 and 20,793,005.40 is: 31,189,508.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,785,028.60 : 32,677,542.90 = 20,793,005.40 : x
  2. Step 2: Convert to fraction form
    21,785,028.60/32,677,542.90 = 20,793,005.40/x
  3. Step 3: Cross multiply
    21,785,028.60x = 32,677,542.90 × 20,793,005.40
  4. Step 4: Simplify right side
    21,785,028.60x = 679,464,325,978,431.62
  5. Step 5: Solve for x
    x = 679,464,325,978,431.62/21,785,028.60
  6. Step 6: Final answer
    x = 31,189,508.10

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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.