Home / 27,772.07-38,285.58-19,800.45

Finding the Fourth Proportional to 27,772.07, 38,285.58 and 19,800.45

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Solution

The fourth proportional to 27,772.07, 38,285.58 and 19,800.45 is: 27,296.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,772.07 : 38,285.58 = 19,800.45 : x
  2. Step 2: Convert to fraction form
    27,772.07/38,285.58 = 19,800.45/x
  3. Step 3: Cross multiply
    27,772.07x = 38,285.58 × 19,800.45
  4. Step 4: Simplify right side
    27,772.07x = 758,071,712.51
  5. Step 5: Solve for x
    x = 758,071,712.51/27,772.07
  6. Step 6: Final answer
    x = 27,296.20

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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.