Home / 27,054.69-37,383.17-20,820.93

Finding the Fourth Proportional to 27,054.69, 37,383.17 and 20,820.93

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Solution

The fourth proportional to 27,054.69, 37,383.17 and 20,820.93 is: 28,769.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,054.69 : 37,383.17 = 20,820.93 : x
  2. Step 2: Convert to fraction form
    27,054.69/37,383.17 = 20,820.93/x
  3. Step 3: Cross multiply
    27,054.69x = 37,383.17 × 20,820.93
  4. Step 4: Simplify right side
    27,054.69x = 778,352,261.64
  5. Step 5: Solve for x
    x = 778,352,261.64/27,054.69
  6. Step 6: Final answer
    x = 28,769.59

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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.