Home / 35,431.36-48,900.82-20,897.14

Finding the Fourth Proportional to 35,431.36, 48,900.82 and 20,897.14

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Solution

The fourth proportional to 35,431.36, 48,900.82 and 20,897.14 is: 28,841.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,431.36 : 48,900.82 = 20,897.14 : x
  2. Step 2: Convert to fraction form
    35,431.36/48,900.82 = 20,897.14/x
  3. Step 3: Cross multiply
    35,431.36x = 48,900.82 × 20,897.14
  4. Step 4: Simplify right side
    35,431.36x = 1,021,887,281.65
  5. Step 5: Solve for x
    x = 1,021,887,281.65/35,431.36
  6. Step 6: Final answer
    x = 28,841.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.