Home / 27,368.76-37,786.12-20,983.51

Finding the Fourth Proportional to 27,368.76, 37,786.12 and 20,983.51

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Solution

The fourth proportional to 27,368.76, 37,786.12 and 20,983.51 is: 28,970.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,368.76 : 37,786.12 = 20,983.51 : x
  2. Step 2: Convert to fraction form
    27,368.76/37,786.12 = 20,983.51/x
  3. Step 3: Cross multiply
    27,368.76x = 37,786.12 × 20,983.51
  4. Step 4: Simplify right side
    27,368.76x = 792,885,539.69
  5. Step 5: Solve for x
    x = 792,885,539.69/27,368.76
  6. Step 6: Final answer
    x = 28,970.46

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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.