Home / 21,202.01-31,752.49-11,818.77

Finding the Fourth Proportional to 21,202.01, 31,752.49 and 11,818.77

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Solution

The fourth proportional to 21,202.01, 31,752.49 and 11,818.77 is: 17,699.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,202.01 : 31,752.49 = 11,818.77 : x
  2. Step 2: Convert to fraction form
    21,202.01/31,752.49 = 11,818.77/x
  3. Step 3: Cross multiply
    21,202.01x = 31,752.49 × 11,818.77
  4. Step 4: Simplify right side
    21,202.01x = 375,275,376.24
  5. Step 5: Solve for x
    x = 375,275,376.24/21,202.01
  6. Step 6: Final answer
    x = 17,699.99

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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.