Home / 21,022,182.60-31,533,273.90-20,738,747.40

Finding the Fourth Proportional to 21,022,182.60, 31,533,273.90 and 20,738,747.40

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Solution

The fourth proportional to 21,022,182.60, 31,533,273.90 and 20,738,747.40 is: 31,108,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022,182.60 : 31,533,273.90 = 20,738,747.40 : x
  2. Step 2: Convert to fraction form
    21,022,182.60/31,533,273.90 = 20,738,747.40/x
  3. Step 3: Cross multiply
    21,022,182.60x = 31,533,273.90 × 20,738,747.40
  4. Step 4: Simplify right side
    21,022,182.60x = 653,960,602,107,112.75
  5. Step 5: Solve for x
    x = 653,960,602,107,112.75/21,022,182.60
  6. Step 6: Final answer
    x = 31,108,121.10

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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.