Home / 21,022,108.05-31,533,162.08-19,746,649.65

Finding the Fourth Proportional to 21,022,108.05, 31,533,162.08 and 19,746,649.65

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Solution

The fourth proportional to 21,022,108.05, 31,533,162.08 and 19,746,649.65 is: 29,619,974.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022,108.05 : 31,533,162.08 = 19,746,649.65 : x
  2. Step 2: Convert to fraction form
    21,022,108.05/31,533,162.08 = 19,746,649.65/x
  3. Step 3: Cross multiply
    21,022,108.05x = 31,533,162.08 × 19,746,649.65
  4. Step 4: Simplify right side
    21,022,108.05x = 622,674,303,851,692
  5. Step 5: Solve for x
    x = 622,674,303,851,692/21,022,108.05
  6. Step 6: Final answer
    x = 29,619,974.48

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Double scale
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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.