Home / 27,139.84-37,448.62-15,203.68

Finding the Fourth Proportional to 27,139.84, 37,448.62 and 15,203.68

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Solution

The fourth proportional to 27,139.84, 37,448.62 and 15,203.68 is: 20,978.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,139.84 : 37,448.62 = 15,203.68 : x
  2. Step 2: Convert to fraction form
    27,139.84/37,448.62 = 15,203.68/x
  3. Step 3: Cross multiply
    27,139.84x = 37,448.62 × 15,203.68
  4. Step 4: Simplify right side
    27,139.84x = 569,356,834.92
  5. Step 5: Solve for x
    x = 569,356,834.92/27,139.84
  6. Step 6: Final answer
    x = 20,978.64

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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.