Home / 35,929.40-53,926.10-21,119.80

Finding the Fourth Proportional to 35,929.40, 53,926.10 and 21,119.80

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Solution

The fourth proportional to 35,929.40, 53,926.10 and 21,119.80 is: 31,698.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,929.40 : 53,926.10 = 21,119.80 : x
  2. Step 2: Convert to fraction form
    35,929.40/53,926.10 = 21,119.80/x
  3. Step 3: Cross multiply
    35,929.40x = 53,926.10 × 21,119.80
  4. Step 4: Simplify right side
    35,929.40x = 1,138,908,446.78
  5. Step 5: Solve for x
    x = 1,138,908,446.78/35,929.40
  6. Step 6: Final answer
    x = 31,698.51

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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.