Home / 21,443,324.70-32,164,987.05-20,398,230.30

Finding the Fourth Proportional to 21,443,324.70, 32,164,987.05 and 20,398,230.30

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Solution

The fourth proportional to 21,443,324.70, 32,164,987.05 and 20,398,230.30 is: 30,597,345.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,443,324.70 : 32,164,987.05 = 20,398,230.30 : x
  2. Step 2: Convert to fraction form
    21,443,324.70/32,164,987.05 = 20,398,230.30/x
  3. Step 3: Cross multiply
    21,443,324.70x = 32,164,987.05 × 20,398,230.30
  4. Step 4: Simplify right side
    21,443,324.70x = 656,108,813,442,417.62
  5. Step 5: Solve for x
    x = 656,108,813,442,417.62/21,443,324.70
  6. Step 6: Final answer
    x = 30,597,345.45

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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.