Home / 21,032,448.60-31,548,672.90-20,040,425.40

Finding the Fourth Proportional to 21,032,448.60, 31,548,672.90 and 20,040,425.40

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Solution

The fourth proportional to 21,032,448.60, 31,548,672.90 and 20,040,425.40 is: 30,060,638.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032,448.60 : 31,548,672.90 = 20,040,425.40 : x
  2. Step 2: Convert to fraction form
    21,032,448.60/31,548,672.90 = 20,040,425.40/x
  3. Step 3: Cross multiply
    21,032,448.60x = 31,548,672.90 × 20,040,425.40
  4. Step 4: Simplify right side
    21,032,448.60x = 632,248,825,721,451.62
  5. Step 5: Solve for x
    x = 632,248,825,721,451.62/21,032,448.60
  6. Step 6: Final answer
    x = 30,060,638.10

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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.