Home / 35,789.12-49,389.12-19,873.28

Finding the Fourth Proportional to 35,789.12, 49,389.12 and 19,873.28

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Solution

The fourth proportional to 35,789.12, 49,389.12 and 19,873.28 is: 27,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,789.12 : 49,389.12 = 19,873.28 : x
  2. Step 2: Convert to fraction form
    35,789.12/49,389.12 = 19,873.28/x
  3. Step 3: Cross multiply
    35,789.12x = 49,389.12 × 19,873.28
  4. Step 4: Simplify right side
    35,789.12x = 981,523,810.71
  5. Step 5: Solve for x
    x = 981,523,810.71/35,789.12
  6. Step 6: Final answer
    x = 27,425.20

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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.